D2.Psy.2.9-12: Investigating Behavior from Four Psychological Perspectives
In plain English: D2.Psy.2.9-12 is the C3 Framework psychology indicator for grades 9-12 that asks students to investigate human behavior from biological, cognitive, behavioral and sociocultural perspectives. Students explain one behavior through each lens, name the evidence each lens would collect, and show how the explanations fit together.
Investigate human behavior from biological, cognitive, behavioral, and sociocultural perspectives.
C3 Framework for Social Studies (NCSS) · Dimension 2: Applying Disciplinary Concepts and Tools · Discipline: Psychology · Psychological Perspectives and Methods of Inquiry · Official standard
D2.Psy.2.9-12 asks students to investigate human behavior from biological, cognitive, behavioral and sociocultural perspectives. Investigating means more than naming the four: students explain one behavior through each lens, say what evidence each lens would collect, and see where the explanations connect, for example when a work schedule disrupts the body clock.
The behavior in this lesson is teen sleep. Students read Watson's 1913 behaviorist manifesto as a historical source, three current federal health pages (NINDS, NHLBI and CDC), and an invented case with an invented sleep log. All study plans are written on paper only.
Learning Objectives
By the end of this lesson, students will be able to:
Describe the focus, typical questions and typical evidence of the biological, cognitive, behavioral and sociocultural perspectives
Classify an explanation of behavior by perspective and justify the classification
Explain one behavior from all four perspectives using evidence from sources
Show how two perspectives interact in a single behavior
Evaluate a one-perspective explanation and say what it leaves out
Prior Knowledge Required
Students should already be comfortable with:
The basic tools of psychological research: hypothesis, variables, controls D2.Psy.1.9-12
Sensory receptors sending messages to the brain for behavior and memory MS-LS1-8
"Many teenagers say they feel tired in first period. In three minutes, write as many different explanations as you can think of. Do not judge them yet."
Collect explanations on the board without sorting them. Then draw four columns headed Biological, Cognitive, Behavioral and Sociocultural, and move each explanation into a column as a class. Most lists include body clocks, phones, homework, early start times and "not caring about sleep"; the point is that one behavior has explanations at several levels at once.
Tell students that this page studies sleep as an example of behavior, not as health advice. Nobody shares personal sleep details, and no one is diagnosed. Source 4, paragraph 2 (CDC) says: "Talk to your healthcare provider if you have problems sleeping." A student with a real concern can talk with a parent or guardian, the school nurse or counselor, or a doctor.
Direct Instruction20 minutes
A perspective in psychology is a way of explaining behavior that decides which causes to look for and which evidence to collect. The four in this indicator are not rival teams; each answers a different question about the same behavior. Teach the table, then read Sources 1 and 2.
The four perspectives named in D2.Psy.2.9-12 (summary written for this page)
Perspective
Looks for causes in
Typical question about sleep
Typical evidence
Biological
The brain, nervous system, hormones and genes
Which brain structures and chemical signals time sleep and waking?
Brain and hormone measurements, sleep-lab recordings
Cognitive
Thinking: attention, memory, beliefs and decisions
How does short sleep change attention and memory, and what do people believe about sleep?
Memory and attention tasks, belief questionnaires
Behavioral
Observable actions learned from stimuli, responses and their consequences
Which cues and rewards keep a bedtime habit going?
Counts and logs of behavior, before-and-after changes in routines
Sociocultural
Family, peers, school and work schedules, community and culture
How do school start times, jobs and friends' norms shape when teens sleep?
Comparisons across groups, schools or communities; surveys
Source 1 is a historical document: John B. Watson's 1913 article that launched behaviorism. Read it for the behavioral perspective's core idea, that psychology should predict behavior from stimuli. It is not today's view of the whole field: Watson wanted psychology to set consciousness aside, and modern psychology studies both behavior and mental processes, which is why the cognitive perspective is in this indicator. Watson's word "brute" is an old term for animals.
1Psychology as the behaviorist views it is a purely objective experimental branch of natural science. Its theoretical goal is the prediction and control of behavior. Introspection forms no essential part of its methods, nor is the scientific value of its data dependent upon the readiness with which they lend themselves to interpretation in terms of consciousness. The behaviorist, in his efforts to get a unitary scheme of animal response, recognizes no dividing line between man and brute. The behavior of man, with all of its refinement and complexity, forms only a part of the behaviorist's total scheme of investigation.
[...]
2The psychology which I should attempt to build up would take as a starting point, first, the observable fact that organisms, man and animal alike, do adjust themselves to their environment by means of hereditary and habit equipments. These adjustments may be very adequate or they may be so inadequate that the organism barely maintains its existence; secondly, that certain stimuli lead the organisms to make the responses. In a system of psychology completely worked out, given the response the stimuli can be predicted; given the stimuli the response can be predicted. [...]
John B. Watson, Source 1: John B. Watson, "Psychology as the Behaviorist Views It" (1913) (1913). Public domain (published 1913). Source text.
Source 2 is a current federal health page describing the biology of sleep. Read paragraphs 1 and 2 together, then 3-5.
1The hypothalamus, a peanut-sized structure deep inside the brain, contains groups of nerve cells that act as control centers affecting sleep and wakefulness. Within the hypothalamus is the suprachiasmatic nucleus (SCN)—clusters of thousands of cells that receive information about light exposure directly from the eyes and control your behavioral rhythm. Some people with damage to the SCN sleep erratically throughout the day because they are not able to match their sleep/wake cycle (circadian rhythms) with the light-dark cycle. Most blind people maintain some ability to sense light to help them regulate their sleep/wake cycle.
2The pineal gland, located within the brain’s two hemispheres, receives signals from the SCN and increases production of the hormone melatonin, which helps put you to sleep once the lights go down. Scientists believe that peaks and valleys of melatonin over time are important for matching the body’s circadian rhythm to the external cycle of light and darkness.
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3Two internal biological mechanisms—circadian rhythm and homeostasis—work together to regulate when you are awake and when you are asleep.
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4Sleep-wake homeostasis keeps track of your need for sleep. Homeostasis refers to a balance between systems in the body. The homeostatic sleep drive reminds the body to sleep after a certain time and regulates sleep intensity. This sleep drive gets stronger every hour you are awake and causes you to sleep longer and more deeply after a period without sleep.
5Factors that influence your sleep-wake needs include medical conditions, medications, stress, sleep environment, age, and what you eat and drink. Perhaps the greatest influence is the exposure to light. Specialized cells in the retinas of your eyes process light and tell the brain whether it is day or night and can advance or delay our sleep-wake cycle. Exposure to light can make it difficult to fall asleep and get back to sleep if you wake up during the night.
National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health, Source 2: National Institute of Neurological Disorders and Stroke, Brain Basics: Understanding Sleep (brain structures and sleep drives) (2025). US government work (17 U.S.C. 105). Source text.
Biological lens: Source 2, paragraphs 1-2
Trace the biological chain from evening darkness to sleepiness.
Result: Cells in the suprachiasmatic nucleus (SCN) "receive information about light exposure directly from the eyes" (paragraph 1); the pineal gland "receives signals from the SCN and increases production of the hormone melatonin, which helps put you to sleep once the lights go down" (paragraph 2). Darkness, SCN, melatonin, sleepiness: each link is a brain structure or hormone, so this is a biological explanation.
Behavioral lens: Source 1, paragraph 2
Use Watson's stimulus-response idea to describe an invented habit: a student checks their phone every time it buzzes during homework.
Result: Watson writes that "certain stimuli lead the organisms to make the responses" (paragraph 2). Stimulus: the buzz. Response: picking up the phone. A behaviorist would count how often the response follows the stimulus and what happens right after (a new message), and would test whether removing the stimulus (phone in another room) changes the response. No question is asked about what the student is thinking.
Cognitive lens: Source 3, paragraph 2
Which effects of short sleep in Source 3 are cognitive, and how could a researcher measure one?
Result: "You might have trouble learning, focusing, and reacting. Also, you might find it hard to judge other people's emotions and reactions" (paragraph 2). Learning, focusing and judging emotions are mental processes. Measure focusing, for example, by timing how quickly volunteers respond to a signal on a screen after a normal night and after a shorter night, in a lab study of adult volunteers who consent and that an ethics board has approved.
Sociocultural lens: Source 5, paragraph 3
What social causes of short sleep does Source 5 name, and why are they sociocultural?
Result: "people are getting less sleep than they need due to longer work hours and the availability of round-the-clock entertainment and other activities" (paragraph 3). Work hours and all-night entertainment are features of how a society organizes time, not of one person's brain or thoughts. A sociocultural study would compare sleep across groups with different work schedules.
Perspectives interact: Source 5, paragraph 1
Explain night-shift sleep trouble with two perspectives at once.
Result: Night shift workers "have trouble falling asleep when they go to bed [...] because their natural circadian rhythm and sleep-wake cycle is disrupted" (paragraph 1). The cause starts in a work schedule (sociocultural) and acts through the body clock (biological). Neither lens alone explains the behavior.
Read Source 3 aloud after the cognitive example so students see the rest of the page. Quick check: ask students to hold up 1-4 fingers for the perspective of each example explanation from the warm-up board.
1Sleeping is a basic human need, like eating, drinking, and breathing. Like these other needs, sleeping is vital for good health and well-being throughout your lifetime.
[...]
2Sleep deficiency can interfere with work, school, driving, and social functioning. You might have trouble learning, focusing, and reacting. Also, you might find it hard to judge other people's emotions and reactions. Sleep deficiency also can make you feel frustrated, cranky, or worried in social situations.
3The symptoms of sleep deficiency may differ between children and adults. Children who are sleep deficient might be overly active and have problems paying attention. They also might misbehave, and their school performance can suffer.
[...]
4Sleep deficiency is also linked to a higher chance of injury in adults, teens, and children. For example, sleepiness while driving (not related to alcohol) is responsible for serious car crash injuries and death. In older adults, sleep deficiency may be linked to a higher chance of falls and broken bones.
[...]
5A common myth is that people can learn to get by on little sleep with no negative effects. However, research shows that getting enough quality sleep at the right times is vital for mental health, physical health, quality of life, and safety.
National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health, Source 3: National Heart, Lung, and Blood Institute, Sleep Deprivation and Deficiency (how lack of sleep affects daily life) (2022). US government work (17 U.S.C. 105). Source text.
Guided Practice15 minutes
Read Source 6, an invented case with invented data. Jordan is not a real student, and the class is not diagnosing anyone: the case is a vehicle for practicing the four lenses. Work through two steps together.
1Invented case, written for this page. Jordan is a 16-year-old junior. School starts at 7:40 a.m., so Jordan's alarm rings at 6:15 on school days. Jordan works a 5-9 p.m. shift at a grocery store three evenings a week, then starts homework around 9:30. Most of Jordan's friends stay active in a group chat until after midnight, and replies that come late at night often get the most reactions.
2Jordan usually takes the phone to bed "to check one thing" and keeps scrolling. Jordan says, "I can catch up on the weekend, so a few short nights don't matter." On weekends Jordan sleeps until about 11 a.m. In first period Jordan often rereads the same paragraph and has trouble keeping track of what the teacher just said. Jordan's family eats dinner late on work nights, and an older sibling who works night shifts sleeps during the day.
3Jordan's sleep log for one week (invented data, hours asleep): Sunday night 6.5, Monday 6.0, Tuesday 7.0, Wednesday 5.5, Thursday 6.0, Friday 9.5, Saturday 10.0.
SVHS (invented scenario), Source 6: Jordan's week (invented case with invented data) (2026). Original passage written for this page.
Step 1: The data. Jordan's total for the week is 6.5 + 6.0 + 7.0 + 5.5 + 6.0 + 9.5 + 10.0 = 50.5 hours, so the weekly mean is 50.5 / 7 ≈ 7.2 hours a night. CDC's About Sleep page lists 8-10 hours for teens aged 13-17, and Source 5, paragraph 2 says teens "on average need about 9.5 hours." Jordan's weekly mean is below both. Ask: does a weekly mean hide anything? (It mixes very different school nights and weekend nights; Diagram 2 shows the pattern.) These are invented numbers for one invented person, a sample of one, so they illustrate a method and prove nothing about teens in general.
Step 2: A sociocultural reading, modeled. Find the social and cultural features of Jordan's life in paragraph 1: a 7:40 a.m. school start, a 5-9 p.m. job three evenings a week, and a friend group whose chat stays active "until after midnight." Paragraph 2 adds a family whose dinner is late on work nights. Each is set by institutions or groups, not by Jordan's body. Link to Source 5, paragraph 3: long work hours and "round-the-clock entertainment" are the same kind of cause at the scale of a whole society.
Leave the biological, cognitive and behavioral readings of Jordan for students: they appear in the quiz.
Independent Practice15 minutes
Students read Sources 4 and 5 independently. Task: for each source, list every claim it makes and label the claim with the perspective it fits best. Some claims fit two; students should say why. Sources 4 and 5 are also used in the quiz and homework.
1Good sleep is essential for our health and emotional well-being.
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2Talk to your healthcare provider if you have problems sleeping.
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3Getting enough sleep can help you:
4Get sick less often.
5Stay at a healthy weight.
6Reduce stress and improve your mood.
7Improve your heart health and metabolism.
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8Lessen the risk of motor vehicle crashes and related injury or death.
9Improve your attention and memory to better perform daily activities.
10Better sleep habits can help you get a good night's sleep. Habits that can improve your sleep include:
11Going to bed and getting up at the same time every day.
12Keeping your bedroom quiet, relaxing, and at a cool temperature.
13Turning off electronic devices at least 30 minutes before bedtime.
14Avoiding large meals and alcohol before bedtime.
15Avoiding caffeine in the afternoon or evening.
16Exercising regularly and maintaining a healthy diet.
17Quality sleep means you are getting uninterrupted and refreshing sleep. Getting quality sleep is not just about how many hours you sleep, but how well you sleep.
Centers for Disease Control and Prevention (CDC), Source 4: Centers for Disease Control and Prevention, About Sleep (benefits and habits) (2024). US government work (17 U.S.C. 105). Source text.
1Night shift workers often have trouble falling asleep when they go to bed, and also have trouble staying awake at work because their natural circadian rhythm and sleep-wake cycle is disrupted. Jet lag also interferes with a person's circadian rhythms, creating a mismatch between their internal clock and the actual clock.
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2Your need for sleep and your sleep patterns change as you age, but this varies significantly across individuals of the same age. There is no magic amount of sleep that works for everybody of the same age. Babies initially sleep as much as 16 to 18 hours per day, which may boost growth and development (especially of the brain). School-age children and teens on average need about 9.5 hours of sleep per night. Most adults need 7-9 hours of sleep a night, even older people. However, older people may have more trouble getting enough sleep and are more likely to take medications that can interfere with sleep.
3In general, people are getting less sleep than they need due to longer work hours and the availability of round-the-clock entertainment and other activities.
4Many people feel they can "catch up" on missed sleep during the weekend, but depending on how sleep-deprived they are, sleeping longer on the weekends may not be enough to replace the sleep they've missed.
National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health, Source 5: National Institute of Neurological Disorders and Stroke, Brain Basics: Understanding Sleep (schedules and sleep needs) (2025). US government work (17 U.S.C. 105). Source text.
Closure10 minutes
Exit ticket: "Pick one explanation from the warm-up board. Name its perspective, and name one piece of evidence a researcher from a different perspective would want before accepting it."
Teacher notes. (1) Watson's 1913 article (Source 1) is presented as history. His call to drop consciousness from psychology was a position of its time, and this page does not present it as current science; his word "brute" for animals is dated. (2) Sources 2-5 are federal health pages quoted for what they say; the lesson does not give medical advice. (3) Source 6 is invented. If students share personal sleep worries, respond privately and point them to a parent or guardian, the school nurse or counselor, or a doctor. Avoid labels such as "insomnia" for anyone in the class; diagnosis is a clinician's job, not a classroom's.
Differentiation Strategies
For Struggling Students
Give a four-color code: one highlighter color per perspective while reading Sources 2-5
Provide sentence frames: "A biological psychologist would look at ... and measure ..."
Pair each source with its matching row of the perspectives table before independent reading
For Advanced Students
Ask which perspective Source 4's habit list draws on, and whether any habit has a biological reason in Source 2
Have students write a one-paragraph reply to Watson from a cognitive psychologist, using Source 3
Ask students to propose a study, on paper only, that measures two perspectives at once
Assessment Guidance
What to Look For
Strong answers name the perspective, tie it to a specific kind of cause and evidence, and quote the source. The best answers connect lenses rather than listing them. Watch for students who treat "biological" as "real" and the other perspectives as excuses, who call any mention of the brain biological even when the claim is about beliefs, or who read Watson's 1913 view as current science.
02
Classroom Activities
3 Activities
1
Four Lenses Jigsaw: Why Are Teens Tired in First Period?
20 minExpert groups of 3-4, then mixed groups of 4
Each expert group takes one perspective and its sources: Biological (Source 2), Cognitive (Source 3 and Source 4, paragraph 9), Behavioral (Source 1 and Source 4, paragraphs 10-16) and Sociocultural (Source 5, paragraphs 1 and 3, and the warm-up board). Experts answer the three questions below in 8 minutes. Then mixed groups, one expert per lens, build a four-part poster that explains the warm-up question with a quotation in each part.
Expert Questions
What kinds of causes does your lens look for?
What evidence would your lens collect about teen tiredness, and how? (Plans stay on paper.)
Name one question about teen tiredness your lens cannot answer on its own.
Poster Requirements
One section per perspective, each with a quoted line and its source and paragraph number
At least one arrow showing how two lenses connect
A one-sentence answer to the warm-up question that uses all four lenses
2
Perspective Card Sort: Nervous Before a Presentation
15 minPairs
Feeling nervous before speaking to a class is common and is not a disorder. Each pair gets 12 explanation cards (invented hypotheses written for this page) about a student who feels nervous before a class presentation. Pairs sort the cards into the four perspectives, write a one-line reason for each, and then pick the two cards from different lenses that they think connect most strongly.
The 12 Explanation Cards
The body's alarm system speeds up heart rate and breathing before the talk.
The speaker predicts, "Everyone will notice every mistake."
After classmates laughed once, the speaker stopped volunteering, and not volunteering brought relief each time.
In the speaker's family, children are expected not to speak up in front of adults.
Some people may inherit a tendency to react strongly to stress.
The speaker pays attention only to the one bored-looking face in the room.
The speaker has rarely practiced speaking aloud, so the skill has had little chance to be rewarded.
The class has a habit of joking about anyone who makes a mistake.
Being short of sleep the night before leaves the body less steady.
The speaker remembers a past stumble vividly and expects it to happen again.
Each time the teacher praises a short answer, the speaker raises a hand a little more often.
Grades at this school depend heavily on public presentations, so the stakes feel high.
Answer Key
Biological: 1, 5, 9. Cognitive: 2, 6, 10. Behavioral: 3, 7, 11. Sociocultural: 4, 8, 12. Accept a reasoned second lens, for example card 3 as sociocultural as well, because the laughter is a peer reaction.
3
Four Study Plans on Paper: Late-Night Phone Use
20 minGroups of 4
Each group writes four short study plans about late-night phone use among teens, one per perspective. Every plan names a research question, what would be measured, who would take part and how their consent (and a parent's permission, for anyone under 18) would be obtained. Plans stay on paper: groups do not survey or observe anyone. The model below shows the level of detail expected.
Model Plan (Sociocultural)
Question: Do teens whose friend groups expect replies at night use phones later than teens whose groups do not? Measure: an anonymous survey asking about group expectations and the time of the last phone use on school nights. Participants: volunteers aged 14-17 from several schools, with parent permission and teen agreement, and no names collected. Limit: a survey shows a relationship, not a cause.
Checklist for Each Plan
Does the measure fit the lens (a hormone level, an attention task, a behavior count, a group comparison)?
Could another researcher repeat it from what is written?
Are consent, the right to stop and privacy covered?
Variation for Advanced Students
Combine two lenses in one plan, for example measuring both evening light exposure and friend-group expectations, and explain what the combination can show that neither plan can show alone.
03
Diagrams & Visual Aids
2 diagrams
Diagram 1: Four Perspectives on One Behavior
Each perspective looks at teen sleep for a different kind of cause. The lesson's sources supply the examples: Source 2 (biological), Source 3 (cognitive), Sources 1 and 4 (behavioral) and Sources 5 and 6 (sociocultural). The lines meet in the middle because the explanations connect.
Diagram 2: Jordan's Invented Sleep Log Against Two Federal Guidelines
Bars show the invented hours in Source 6. The shaded band is CDC's 8-10 hours for ages 13-17 (About Sleep page); the dashed line is the "about 9.5 hours" average need for school-age children and teens in Source 5, paragraph 2. A single invented week for one invented person is a sample of one: it illustrates the method and supports no conclusion about teens in general.
04
Homework Assignment
~30 min
Homework: Four Lenses on a New Behavior
Directions: Part 1 uses this invented case: Maya, 15, checks her phone within a minute of nearly every notification, even during homework. Her friends expect quick replies, and she says she worries she will miss something important. Part 2 uses Sources 2-6. Quote sources with paragraph numbers. Any study you plan stays on paper.
Part 1: Maya and Notifications (Problems 1-3)
Explain Maya's checking from the behavioral perspective and from the sociocultural perspective. For the behavioral explanation, name the stimulus, the response and what follows the response; for the sociocultural one, name the group expectation.
Write one research question about Maya's checking for the cognitive perspective and one for the biological perspective. For each, say what evidence would answer it and how it could be collected with consent.
Plan, on paper only, a two-week study that tests one behavioral change for Maya's situation, such as silencing notifications during homework. Give the independent variable, the dependent variable with an operational definition, and one ethical safeguard.
Part 2: Sources and Data (Problems 4-6)
Source 4, paragraph 11 recommends "Going to bed and getting up at the same time every day." Explain why this habit makes sense from the behavioral perspective and from the biological perspective. Use Source 2, paragraph 3 for the biological reason.
Source 3, paragraph 4 links sleepiness to car crashes. Which two perspectives would you combine to investigate drowsy driving among teen drivers? Explain what each contributes that the other cannot.
Using Jordan's invented log in Source 6, paragraph 3, how many more hours of sleep, in total, would Jordan need across the five school nights to average 8 hours a night on those nights? To average 9.5 hours? Then name one sociocultural barrier in Source 6 that would make the change hard.
Rubric
Criterion
Full Credit (2 pts)
Partial Credit (1 pt)
No Credit (0 pts)
Perspective accuracy
Each explanation fits its lens and names the right kind of cause and evidence
One explanation drifts into another lens
Perspectives confused or missing
Use of sources
Quotations with source and paragraph numbers support Part 2 answers
Sources named without quotations or paragraph numbers
No source use
Connecting lenses
Shows how two lenses interact or what each adds
Lists lenses without connecting them
Single-lens answers
Plans and computation
Problem 6 correct with work; the plan in Problem 3 is testable and ethical, on paper only
One error, or a plan missing a safeguard
Several errors or no plan
05
Quiz: 20 Questions
Interactive, with answers
Instructions
Sources 1, 2 and 3 are printed in Direct Instruction, Source 6 in Guided Practice, and Sources 4 and 5 in Independent Practice. Source 1 is used in Questions 5, 6, 15 and 20; Source 2 in Questions 7, 8, 10, 14, 17 and 18; Source 3 in Questions 9 and 13; Source 4 in Questions 10, 13 and 16; Source 5 in Questions 13 and 19; and Source 6 in Questions 11-18. Questions 1-4 need no printed source. Questions 1-14 are multiple choice; 15-20 are short answer.
Multiple choice: pick an option to check it. Short answer: write your answer, then reveal the model answer.
0 of 20 answered · 0 correct
Question 1 of 20 · Multiple Choice
An invented study measures how the level of a hormone changes across the evening and links it to how sleepy volunteers feel. Which perspective is this study using?
Answer: B
A hormone is a chemical signal in the body, so the cause being studied is biological. A is tempting because sleepiness is a feeling the volunteers report, but the explanation is about the hormone, not about thinking. C is tempting because sleepiness can be seen in actions, but it fits a study that counts actions and their consequences. D would compare groups, schedules or cultures.
Question 2 of 20 · Multiple Choice
An invented study asks whether students who believe they can "get by" on little sleep go to bed later than students who do not hold that belief. Which perspective does this study take?
Answer: D
The proposed cause is a belief, a mental process, so the study is cognitive. C is tempting because beliefs are often shared by groups, and it would be a reasonable second lens if the study compared groups that share the belief, but as written it measures each student's own belief. A and B look for causes in the body and in learned responses.
Question 3 of 20 · Multiple Choice
An invented study tracks whether a teen keeps scrolling longer on nights when posts get more replies, treating replies as a reward that follows the scrolling. Which perspective is this?
Answer: A
A response (scrolling) and a consequence that follows it (replies) are the units of the behavioral perspective. B and D each point to a real connection (rewards involve the brain, and replies come from friends), but the study measures neither brain activity nor group norms. C would ask what the teen thinks or expects.
Question 4 of 20 · Multiple Choice
An invented study compares bedtimes of teens in towns where most parents work evening shifts with towns where most parents work day shifts. Which perspective is this?
Answer: C
The study compares groups defined by how a community organizes work, a sociocultural cause. A names a possible pathway, since work shifts can change body clocks, but nothing biological is measured. D is tempting because bedtimes are actions, which is true of the outcome in every study here; the perspective is set by the cause being investigated.
Question 5 of 20 · Multiple Choice
According to Source 1, paragraph 1, what is the "theoretical goal" of psychology as the behaviorist views it?
Answer: B
Watson writes: "Its theoretical goal is the prediction and control of behavior." A and C describe the consciousness-centered psychology he was rejecting; he says introspection "forms no essential part of its methods." D is not stated in the paragraph.
Question 6 of 20 · Multiple Choice
In Source 1, paragraph 2, Watson says organisms adjust to their environment "by means of hereditary and habit equipments." Which perspectives do these two terms point toward?
Answer: A
Hereditary equipment is inherited through genes, the biological perspective's territory; habits are learned responses, the behavioral perspective's core. D swaps the two. B and C attach heredity to thinking or culture, which the sentence does not support; Watson's article sets thinking aside, and culture is not inherited.
Question 7 of 20 · Multiple Choice
Source 2, paragraph 4 says the homeostatic sleep drive "gets stronger every hour you are awake." Which prediction follows from this?
Answer: D
A stronger drive "causes you to sleep longer and more deeply after a period without sleep" (paragraph 4). A reverses the effect. B adds an age limit the source does not mention. C confuses a sociocultural schedule with the biological drive.
Question 8 of 20 · Multiple Choice
According to Source 2, paragraph 5, what is "Perhaps the greatest influence" among the factors that affect sleep-wake needs?
Answer: B
"Perhaps the greatest influence is the exposure to light" (paragraph 5). Stress, age and medical conditions are listed in the sentence before as factors, but the source does not call any of them the greatest.
Question 9 of 20 · Multiple Choice
Source 3, paragraph 3 says that "Children who are sleep deficient might be overly active and have problems paying attention." What does this suggest for an observer judging a child's behavior?
Answer: A
The paragraph says symptoms "may differ between children and adults" and that sleep-deficient children "might be overly active," so short sleep can be mistaken for something else. B reverses the point. C overgeneralizes "might" into "always" and amounts to diagnosing. D contradicts the paragraph's first sentence.
Question 10 of 20 · Multiple Choice
Source 4, paragraph 13 recommends "Turning off electronic devices at least 30 minutes before bedtime." Which line from Source 2 gives a biological reason that fits this habit?
Answer: C
Screens give off light, and Source 2, paragraph 5 says exposure to light can make it difficult to fall asleep, a biological mechanism. A and D are about the sleep drive and homeostasis in general, not light. B says that the two internal mechanisms work together but says nothing about light or devices.
Question 11 of 20 · Multiple Choice
Using Jordan's invented sleep log (Source 6, paragraph 3), what is Jordan's mean sleep on the five school nights, Sunday through Thursday?
Answer: D
6.5 + 6.0 + 7.0 + 5.5 + 6.0 = 31 hours, and 31 / 5 = 6.2 hours. A is the mean of all seven nights, which includes the long weekend nights. B is the median of the five school nights. C is the total, not divided by the number of nights.
Question 12 of 20 · Multiple Choice
How many of Jordan's seven logged nights fall within CDC's 8-10 hour range for teens aged 13-17?
Answer: B
Only Friday (9.5) and Saturday (10.0) are between 8 and 10 hours, so 2 nights. A judges the week by its mean of about 7.2 hours, which is below the range, or looks only at the school nights; C counts the nights below the range instead of those inside it; D counts all seven logged nights.
Question 13 of 20 · Multiple Choice
Jordan says, "I can catch up on the weekend, so a few short nights don't matter." Which source line most directly challenges this belief?
Answer: A
Source 5, paragraph 4 answers the catch-up belief head on. B and C describe sleep quality and sleep as a need without addressing weekend catch-up, and D is about travel across time zones.
Question 14 of 20 · Multiple Choice
A student writes: "Jordan is tired only because of biology: teen brains just want to sleep late." What is the main weakness of this explanation?
Answer: B
Source 6 describes a 7:40 start, a job, a late group chat and bedtime scrolling, none of which the student mentions, and the case contains no biological measurement. A and C wrongly rank perspectives; each explains part of the behavior. D overreads Source 2, which itself lists environment, stress and "what you eat and drink" as influences.
Question 15 of 20 · Short Answer
Explain Jordan's late-night scrolling from the behavioral perspective. Use Watson's idea in Source 1, paragraph 2 and details from Source 6, and name the stimulus, the response and the consequence.
Model answer: Watson says "certain stimuli lead the organisms to make the responses" (Source 1, paragraph 2). Stimulus: the phone and new posts in bed. Response: scrolling. Consequence: late replies "often get the most reactions" (Source 6, paragraph 1), so scrolling is followed by a reward and is likely to be repeated. A behaviorist would test this by changing the cue, for example charging the phone outside the bedroom, and counting the change in late scrolling. Rubric: 2 points for stimulus, response and consequence with both quotations; 1 point for a partial chain or one quotation; 0 otherwise.
Question 16 of 20 · Short Answer
Explain Jordan's trouble in first period from the cognitive perspective. Use one detail from Source 6 and one line from Source 4, and say how a researcher could measure the cognitive process involved.
Model answer: Jordan "often rereads the same paragraph and has trouble keeping track of what the teacher just said" (Source 6, paragraph 2): those are attention and memory problems. Source 4 says getting enough sleep can "Improve your attention and memory to better perform daily activities" (paragraph 9). A researcher could give volunteers a short memory task, such as recalling a list, after normal and shorter sleep, with consent and ethics approval. Rubric: 2 points for a cognitive process named, both pieces of evidence and a fitting measure; 1 point for two of these; 0 otherwise.
Question 17 of 20 · Short Answer
What would a biological psychologist want to measure to investigate Jordan's sleepiness, and why? Use two different paragraphs of Source 2.
Model answer: First, Jordan's evening light exposure from the phone, because "Exposure to light can make it difficult to fall asleep" (Source 2, paragraph 5). Second, how long Jordan has been awake before sleep, because the sleep drive "gets stronger every hour you are awake" (paragraph 4); short school nights followed by long weekend nights suggest the drive is building up during the week. A sleep-lab recording or a hormone measurement would be the biological evidence, collected only with consent. Rubric: 2 points for two measurable biological targets, each tied to a different quoted paragraph; 1 point for one; 0 otherwise.
Question 18 of 20 · Short Answer
Choose two perspectives and explain how they interact in Jordan's case. Your answer should show a cause in one perspective working through the other.
Model answer: Sociocultural and biological: the 7:40 a.m. school start and the 5-9 p.m. job (Source 6, paragraph 1) push Jordan's sleep into a short window on school nights, and the homeostatic sleep drive "gets stronger every hour you are awake" (Source 2, paragraph 4), so the social schedule produces a growing biological need that shows up as long weekend nights. Other strong pairs: behavioral and biological (bedtime scrolling adds light exposure, Source 2, paragraph 5), or sociocultural and behavioral (friends' late chat makes late replies rewarding). Rubric: 2 points for a clear causal link across two perspectives with evidence; 1 point for two perspectives listed side by side without a link; 0 otherwise.
Question 19 of 20 · Short Answer
CDC lists 8-10 hours of sleep for teens aged 13-17, and Source 5, paragraph 2 says that school-age children and teens "on average need about 9.5 hours." Do these two federal sources conflict? Explain, using another sentence from Source 5, paragraph 2.
Model answer: They do not conflict. 9.5 hours is inside the 8-10 hour range, and the two describe different things: CDC gives a recommended range, while NINDS gives an average need. Source 5 adds that sleep need "varies significantly across individuals of the same age" and that "There is no magic amount of sleep that works for everybody of the same age," which is why a range makes sense. Rubric: 2 points for a correct comparison, the range-versus-average distinction and a quotation; 1 point for a correct comparison only; 0 otherwise.
Question 20 of 20 · Short Answer
Give one strength and one limitation of Watson's 1913 view (Source 1) as a guide to studying teen sleep. Support the limitation with a detail from Source 6 that his approach could not study.
Model answer: Strength: Watson insists on "purely objective" study and on predicting responses from stimuli, which suits measurable sleep habits, such as how a bedtime cue changes the time lights go out. Limitation: he says introspection "forms no essential part of its methods" and sets consciousness aside, so his approach cannot study Jordan's belief, "I can catch up on the weekend" (Source 6, paragraph 2), because a belief is a mental process that is not directly observed. Rubric: 2 points for a supported strength and a limitation tied to a quoted detail from Source 6; 1 point for one of the two; 0 otherwise.
0 of 20 answered · 0 correct
06
Frequently Asked Questions
10 Questions
What does D2.Psy.2.9-12 mean?
D2.Psy.2.9-12 asks high school students to investigate human behavior from four perspectives: biological, cognitive, behavioral and sociocultural. It is part of the C3 Framework's psychology companion (Appendix B). Students should be able to explain one behavior through each lens, say what evidence each lens would collect and connect the explanations.
What are the four perspectives in D2.Psy.2.9-12?
Biological (brain, hormones, genes), cognitive (attention, memory, beliefs, decisions), behavioral (learned responses to stimuli and consequences) and sociocultural (family, peers, schools, work and culture). Each asks a different question about the same behavior, so they work together rather than competing.
Why does the lesson use teen sleep as the behavior?
Because it is familiar and has well-documented causes at every level, from the brain's body clock to school schedules. The lesson uses federal health pages for the facts and an invented case for practice. It is a vehicle for the perspectives, not health advice, and no student is asked to share or diagnose their own sleep.
Is behaviorism still part of psychology?
Yes, as one perspective: the behavioral perspective still studies how stimuli and consequences shape actions. What is no longer the mainstream view is Watson's 1913 call, in Source 1, to set consciousness aside entirely. The page presents that article as a historical source and pairs it with the cognitive perspective.
Is the biological explanation the "real" one?
No. A biological explanation describes one level of cause; it does not cancel the others. Night-shift sleep trouble, for example, begins in a work schedule and acts through the body clock (Source 5, paragraph 1). Students who rank one lens as the true one usually miss how the causes connect.
What mistakes do students make with D2.Psy.2.9-12?
A common mistake is labeling an explanation by its outcome instead of its cause: every example ends in behavior, but the perspective depends on where the explanation looks for causes. Students also tend to call anything with the word "brain" biological, even when the claim is about beliefs, and to list lenses without linking them.
Do students collect data on classmates' sleep?
No. Jordan's sleep log in Source 6 is invented, and every study in the activities and homework is planned on paper. Real research with teens would need informed consent, a parent's permission for anyone under 18, privacy protections and an ethics review, which D2.Psy.4.9-12 covers.
How is D2.Psy.2.9-12 different from D2.Psy.9.9-12?
D2.Psy.2.9-12 is about the perspectives as ways of investigating any behavior. D2.Psy.9.9-12 asks students to describe biological, psychological and sociocultural factors that influence individuals' cognition, perception and behavior. Teaching the four perspectives first gives students the vocabulary for that indicator.
How can teachers assess D2.Psy.2.9-12?
Ask students to classify explanations by perspective with a reason, to explain one behavior through all four lenses with evidence, and to show how two lenses interact. The quiz on this page does each of these, and the homework transfers the skill to a new behavior.
What should a teacher do if a student shares a real sleep problem?
Respond privately and point the student to a parent or guardian, the school nurse or counselor, or a doctor. CDC's advice in Source 4 is to "Talk to your healthcare provider if you have problems sleeping." Avoid diagnostic labels in class; diagnosis is a clinician's job.
07
Related Standards
6 standards
These standards connect to D2.Psy.2.9-12: prerequisites to review first, parallel standards at the same level, and next steps that build on it.
Before this lesson
D2.Psy.1.9-12Prerequisite
Demonstrate a basic understanding of the scientific methods at the core of psychology
Describe biological, psychological and sociocultural factors in cognition and behavior
Lesson coming soon
D2.Psy.10.9-12Extends to
Explain how biology and experience (nature and nurture) interact to influence behavior
Lesson coming soon
Standard text: National Council for the Social Studies (NCSS), The College, Career, and Civic Life (C3) Framework for Social Studies State Standards: Guidance for Enhancing the Rigor of K-12 Civics, Economics, Geography, and History (Silver Spring, MD: NCSS, 2013). NCSS was not involved in the production of this lesson and does not endorse it.
