AP Psychology Practice Test — 20 Free Questions with Explanations (2026)
Free AP Psychology practice test with 20 multiple-choice questions covering all 9 exam units. Each question includes the correct answer and a full explanation. Use this to identify weak areas before exam day.
AP Psychology Exam Format (2026)
| Section | Details | Time | Weight |
|---|---|---|---|
| Multiple Choice | 100 questions | 70 min | 67% |
| Free Response | 2 questions (7 pts each) | 50 min | 33% |
You have about 42 seconds per MC question. The FRQ section rewards precise terminology and direct application — not long essays.
AP Psychology Practice Test: 20 Questions
Unit 1 — Scientific Foundations of Psychology
Question 1. A researcher studying stress in the workplace follows 50 employees for six months, measuring cortisol levels and job satisfaction scores every two weeks. This study design is best described as:
A) A case study
B) A longitudinal study
C) A cross-sectional study
D) A double-blind experiment
Show Answer
Answer: B
A longitudinal study follows the same participants over time, measuring the same variables repeatedly. A cross-sectional study compares different groups at one point in time. A case study examines one individual in depth. A double-blind experiment requires random assignment to conditions, which is absent here.
Question 2. In an experiment testing whether caffeine improves memory, participants drink either caffeinated or decaf coffee without knowing which they received. The researcher also does not know which drink each participant received until after scoring. This procedure controls for:
A) Random sampling error
B) Experimenter and participant expectation effects
C) Confounding variables in the independent variable
D) Order effects from repeated testing
Show Answer
Answer: B
This describes a double-blind procedure. Both participant and researcher are unaware of group assignment, which prevents expectation effects (placebo effect from the participant; biased scoring from the researcher) from influencing results.
Unit 2 — Biological Bases of Behavior
Question 3. A patient with damage to the hippocampus can still ride a bicycle they learned to ride as a child, but cannot remember what they ate for breakfast. This is because:
A) The hippocampus stores procedural memory; declarative memory is stored in the cerebellum
B) Procedural memory relies on the cerebellum and basal ganglia, while the hippocampus is critical for forming new declarative memories
C) The hippocampus stores all new memories, but old memories are immune to hippocampal damage
D) Riding a bike uses implicit memory encoded in the amygdala
Show Answer
Answer: B
Procedural (implicit) memory — motor skills like riding a bike — is supported by the cerebellum and basal ganglia and does not require the hippocampus. The hippocampus is essential for forming new explicit (declarative) memories, including episodic memories like what you ate for breakfast.
Question 4. Which neurotransmitter is primarily associated with the reward pathway and is released during pleasurable activities such as eating or social interaction?
A) Serotonin
B) GABA
C) Dopamine
D) Norepinephrine
Show Answer
Answer: C
Dopamine is the primary neurotransmitter in the mesolimbic reward pathway. It is released during rewarding experiences and is central to motivation and reinforcement. Serotonin regulates mood and sleep. GABA is the main inhibitory neurotransmitter. Norepinephrine is associated with arousal and the fight-or-flight response.
Unit 3 — Sensation and Perception
Question 5. A wine expert can detect a slight difference in sweetness between two wines that an untrained person cannot distinguish. According to signal detection theory, this difference in ability is best explained by:
A) The expert having a lower absolute threshold due to training
B) Differences in the criterion (response bias) between the expert and novice
C) The expert having a higher sensitivity (d-prime) for detecting sweetness differences
D) Weber's law predicting that experts need smaller just noticeable differences
Show Answer
Answer: C
Signal detection theory separates sensitivity (d-prime) from response bias (criterion). The expert has greater perceptual sensitivity — their sensory system is better calibrated to detect small differences in sweetness. This is distinct from response bias, which reflects willingness to say "yes" regardless of the actual signal.
Question 6. When you walk from bright sunlight into a dark movie theater, you initially see very little but gradually adapt to the darkness. This process relies primarily on:
A) Cones in the fovea increasing their firing rate
B) Rods regenerating rhodopsin (visual pigment) as they adapt to low light
C) The lens adjusting its curvature to focus light differently in dim conditions
D) The pupil contracting to let in more light
Show Answer
Answer: B
Dark adaptation is driven primarily by rods, which contain rhodopsin — a photosensitive pigment that bleaches in bright light and slowly regenerates in darkness, increasing light sensitivity. Cones are responsible for color vision in bright light and adapt faster but less completely. The pupil dilates (not contracts) in dim light.
Unit 4 — Learning
Question 7. A child who was bitten by a dog now fears all animals with four legs. This is an example of:
A) Stimulus discrimination
B) Operant generalization
C) Stimulus generalization
D) Second-order conditioning
Show Answer
Answer: C
Stimulus generalization occurs when a conditioned response is triggered by stimuli similar to the original conditioned stimulus. The child learned to fear the specific dog (CS) but now generalizes that fear to all four-legged animals. Stimulus discrimination would be the opposite — responding only to the original CS.
Question 8. A parent praises a child every time they clean their room. After a few months, the parent starts praising only every third time the child cleans. This shift from continuous to intermittent reinforcement will most likely:
A) Cause the behavior to extinguish faster
B) Make the behavior more resistant to extinction
C) Trigger learned helplessness
D) Convert the positive reinforcement into negative reinforcement
Show Answer
Answer: B
Intermittent (partial) reinforcement schedules produce behavior that is more resistant to extinction than continuous reinforcement. This is because the organism learns that reinforcement does not always follow the behavior, so the absence of reinforcement does not signal that the behavior is no longer effective.
Unit 5 — Cognitive Psychology
Question 9. After studying for an exam, a student remembers the first few concepts they studied and the last few concepts, but forgets most of what was in the middle. This pattern is explained by:
A) The spacing effect
B) The serial position effect
C) Retroactive interference
D) State-dependent memory
Show Answer
Answer: B
The serial position effect describes the tendency to remember items at the beginning of a list (primacy effect, due to rehearsal into long-term memory) and items at the end of a list (recency effect, still in working memory), with poorer recall for middle items.
Question 10. A person trying to remember a phone number repeats it silently to themselves until they can write it down. This strategy uses which component of Baddeley's working memory model?
A) The phonological loop
B) The visuospatial sketchpad
C) The episodic buffer
D) The central executive
Show Answer
Answer: A
The phonological loop is the component of working memory that temporarily stores and rehearses verbal/acoustic information. Repeating sounds or words to yourself (subvocal rehearsal) is its primary mechanism. The visuospatial sketchpad handles visual and spatial information. The central executive allocates attention.
Unit 6 — Developmental Psychology
Question 11. An 18-month-old child cries when her mother leaves the room but quickly calms down and resumes playing when the mother returns, going to her for comfort. This child most likely has:
A) Disorganized attachment
B) Avoidant attachment
C) Anxious-ambivalent attachment
D) Secure attachment
Show Answer
Answer: D
In Ainsworth's Strange Situation, a securely attached child uses the caregiver as a secure base, shows distress at separation but is easily comforted on reunion, and returns to play. Avoidant children show little distress at separation and avoid the caregiver on return. Anxious-ambivalent children show extreme distress and are difficult to soothe.
Question 12. Kohlberg presented participants with moral dilemmas like the Heinz dilemma to study moral reasoning. A person who says "Heinz should steal the drug because human life is worth more than property laws" is reasoning at which level?
A) Preconventional — avoiding punishment
B) Conventional — following social rules
C) Postconventional — universal ethical principles
D) Preoperational — egocentric moral thinking
Show Answer
Answer: C
Postconventional moral reasoning (Level 3 in Kohlberg) involves applying universal ethical principles that transcend specific laws or social agreements. Arguing that human life has intrinsic value that overrides property law reflects this highest level. Conventional reasoning would focus on following laws or social roles.
Unit 7 — Motivation, Emotion, and Personality
Question 13. According to the James-Lange theory of emotion, fear is:
A) The cognitive appraisal that follows physiological arousal
B) Produced simultaneously with physiological arousal in the thalamus
C) The perception of physiological changes in the body (e.g., increased heart rate, trembling)
D) A universal, biologically hardwired response independent of bodily states
Show Answer
Answer: C
The James-Lange theory holds that emotions are the conscious experience of physiological arousal — you feel afraid because you notice your heart racing and body trembling. This is the reverse of common intuition (you do not run because you are afraid; you are afraid because you notice yourself running). The Cannon-Bard theory (option B) argues that emotion and arousal occur simultaneously.
Question 14. A researcher creates a survey measuring extraversion and finds that participants who score high on extraversion also report higher life satisfaction. The correlation is r = 0.45. Which conclusion is most justified?
A) Extraversion causes higher life satisfaction
B) Life satisfaction causes people to become more extraverted
C) Extraversion and life satisfaction have a moderate positive relationship
D) 45% of people high in extraversion have high life satisfaction
Show Answer
Answer: C
Correlation coefficients describe the strength and direction of a relationship between two variables. r = 0.45 indicates a moderate positive relationship. Correlation does not establish causation — options A and B both imply causality that the data do not support. r = 0.45 also does not mean 45% of anything.
Unit 8 — Clinical Psychology
Question 15. A therapist helps a client identify the thought "I must be perfect or I am worthless" as a cognitive distortion, then challenges the client to evaluate evidence for and against this belief. This approach is most consistent with:
A) Psychoanalytic therapy
B) Humanistic therapy
C) Cognitive-behavioral therapy (CBT)
D) Systematic desensitization
Show Answer
Answer: C
CBT targets maladaptive thought patterns (cognitive distortions) and teaches clients to challenge them through Socratic questioning and evidence evaluation. Psychoanalytic therapy focuses on unconscious drives. Humanistic therapy emphasizes unconditional positive regard. Systematic desensitization is a behavioral technique for phobias using gradual exposure.
Question 16. Which DSM-5 criterion most clearly distinguishes Bipolar I Disorder from Major Depressive Disorder?
A) The presence of depressive episodes
B) The severity of depressive symptoms
C) At least one manic episode lasting 7 or more days
D) The presence of psychotic features during low mood
Show Answer
Answer: C
Bipolar I Disorder requires at least one full manic episode (elevated/expansive mood, decreased need for sleep, grandiosity, lasting at least 7 days or requiring hospitalization). Major Depressive Disorder involves depressive episodes but no manic episodes. Both disorders can involve severe depression, and psychotic features can appear in either.
Unit 9 — Social Psychology
Question 17. During a group brainstorming session, individual team members generate fewer ideas than they would working alone, even though the group produces more total ideas. This phenomenon is called:
A) Groupthink
B) Social facilitation
C) Social loafing
D) Deindividuation
Show Answer
Answer: C
Social loafing is the tendency for individuals to exert less effort when working in a group than when working alone, often because individual contribution is less identifiable. Groupthink is the suppression of dissent in pursuit of group harmony. Social facilitation is improved performance on easy tasks in the presence of others.
Question 18. Stanley Milgram's obedience experiments demonstrated that a majority of participants would administer what they believed to be dangerous electric shocks to another person because:
A) The participants were predisposed to sadism and aggression
B) An authority figure in a legitimate institutional context instructed them to continue
C) They were deindividuated by the presence of other participants
D) Cognitive dissonance prevented them from questioning their actions
Show Answer
Answer: B
Milgram found that ordinary people would administer seemingly painful shocks when ordered by an authority figure (the experimenter in a lab coat). The key factors were the authority figure's perceived legitimacy, gradual escalation, and the institutional context. This challenged assumptions that such behavior required an unusual personality.
Question 19. After publicly signing a petition supporting a new school policy, a student who privately disagreed with it starts to genuinely support the policy. This change in attitude is best explained by:
A) Cognitive dissonance theory
B) The mere exposure effect
C) Central route persuasion
D) Social comparison theory
Show Answer
Answer: A
Cognitive dissonance occurs when behavior conflicts with attitudes, creating psychological discomfort. People often resolve this by changing their attitudes to align with their behavior rather than admitting they acted against their beliefs. Having publicly signed the petition, the student reduces dissonance by convincing herself she actually agrees.
Question 20. After a crime, ten eyewitnesses give contradictory accounts of what the suspect looked like. This real-world finding is most consistent with which research on memory?
A) The primacy effect — early-encoded memories are most accurate
B) Loftus and Palmer's research on the misinformation effect
C) Ebbinghaus's forgetting curve showing memory decays exponentially
D) Proactive interference from prior experiences with crime scenes
Show Answer
Answer: B
Elizabeth Loftus demonstrated through the misinformation effect that memory is reconstructive — post-event information (questions, news coverage, talking with other witnesses) can alter or distort memories of the original event. Eyewitness testimony is notoriously unreliable for this reason, with each witness potentially influenced by different post-event information.
Score Estimation
How many did you get right?
| Raw Score (out of 20) | Estimated Performance |
|---|---|
| 18–20 | Strong — likely 4 or 5 territory |
| 14–17 | Good — 3 or 4 range; review weak units |
| 10–13 | Average — consistent 3; focused review needed |
| 6–9 | Below average — significant study required |
| 0–5 | Beginning — build foundations unit by unit |
Use our AP Psychology Score Calculator to estimate your full exam score based on actual MC and FRQ raw scores.
AP Psychology Score Cutoffs (2026)
| AP Score | Composite Range (out of 150) |
|---|---|
| 5 | 113–150 |
| 4 | 93–112 |
| 3 | 71–92 |
| 2 | 55–70 |
| 1 | 0–54 |
Which Units Matter Most
| Unit | % of MC Exam | Priority |
|---|---|---|
| 5 — Cognitive Psychology | 13–17% | High |
| 7 — Motivation, Emotion, Personality | 11–15% | High |
| 8 — Clinical Psychology | 12–16% | High |
| 2 — Biological Bases | 8–10% | Medium |
| 9 — Social Psychology | 8–10% | Medium |
| 4 — Learning | 7–9% | Medium |
| 6 — Developmental Psychology | 7–9% | Medium |
| 3 — Sensation and Perception | 6–8% | Medium |
| 1 — Scientific Foundations | 3–5% | Lower |
Units 5, 7, and 8 together account for ~40% of the MC section.
AP Psychology FRQ Format
The two FRQ questions are each worth 7 points. Each sub-part is worth 1 point. You need to:
- Define or identify a psychological concept
- Apply it to the scenario provided
FRQ tips:
- Use the exact term the question asks about — do not substitute synonyms
- Apply the concept to the scenario directly, do not just define it
- One or two clear sentences per part is enough; length does not earn points
- Answer every sub-part, even if uncertain — partial credit is possible