AP PSYCHOLOGY EXAM REVIEW COMPLETE PRACTICE EXAM QUESTIONS AND
ANSWERS | COMPREHENSIVE STUDY GUIDE | UPDATED 2026/2027 EDITION
Examiner/Administrator: College Board
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ADVANCED PLACEMENT (AP) PSYCHOLOGY EXAM REVIEW
2026/2027 EDITION
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COMPLETE PRACTICE EXAM
100+ ORIGINAL MULTIPLE-CHOICE PRACTICE QUESTIONS
PASSING TARGET: 70%+
SUGGESTED TESTING TIME: 120 MINUTES
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TABLE OF CONTENTS
1. Scientific Foundations of Psychology
2. Research Methods and Statistics
3. Biological Bases of Behavior
4. Sensation and Perception
5. Learning
6. Cognitive Psychology
7. Developmental Psychology
8. Motivation, Emotion, and Personality
9. Clinical Psychology and Psychological Disorders
10. Social Psychology
COLLEGE BOARD || ALIGNED WITH CURRENT AP PSYCHOLOGY COURSE
FRAMEWORK || COMPREHENSIVE PRACTICE EXAM || VERIFIED ORIGINAL STUDY
,MATERIAL || BLUEPRINT-ALIGNED CONTENT || PROFESSIONAL EXAM PREPARATION ||
PREPARED FOR ADVANCED PLACEMENT ASSESSMENT || EDUCATIONAL USE ONLY
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Scientific Foundations of Psychology (Questions 1–6)
QUESTION 1. A psychologist investigates whether sleep duration influences
students' memory performance by assigning participants to different sleep
schedules while controlling caffeine intake and testing conditions. Which
characteristic of this design most directly strengthens the study's internal validity?
A. Recruiting participants from several schools
B. Controlling extraneous variables that could influence memory
C. Using self-reported sleep quality
D. Increasing the sample size after data collection
Correct Answer: B. Controlling extraneous variables that could influence memory
Explanation: Internal validity refers to confidence that the independent variable
caused the observed changes in the dependent variable. Controlling confounding
variables such as caffeine consumption improves this confidence. Recruiting from
multiple schools improves external validity, self-reports may introduce bias, and
increasing the sample size after data collection does not address confounding
variables.
QUESTION 2. Which research method best allows psychologists to determine
whether one variable causes changes in another?
A. Case study
B. Naturalistic observation
C. Experiment
D. Survey
Correct Answer: C. Experiment
,Explanation: Experiments manipulate an independent variable while controlling other
factors, allowing researchers to infer causation. Case studies, observations, and surveys
primarily identify descriptions or correlations rather than cause-and-effect
relationships.
QUESTION 3. A researcher finds that stress and headaches are positively correlated.
Which conclusion is most appropriate?
A. Stress causes headaches in all individuals.
B. Headaches cause stress.
C. The variables are associated, but causation cannot be determined.
D. The correlation proves an experimental relationship.
Correct Answer: C. The variables are associated, but causation cannot be
determined.
Explanation: Correlation indicates a relationship but cannot establish causation
because third variables or reverse causation may exist. Experimental manipulation
would be needed to support causal conclusions.
QUESTION 4. Which ethical principle requires researchers to explain the true
purpose of a study after deception has been used?
A. Confidentiality
B. Debriefing
C. Random assignment
D. Informed sampling
Correct Answer: B. Debriefing
Explanation: Debriefing ensures participants understand the study's purpose, any
deception used, and have an opportunity to ask questions. Confidentiality protects
data, while random assignment and informed sampling are unrelated.
, QUESTION 5. Random assignment primarily helps researchers by:
A. Eliminating measurement error completely.
B. Ensuring every member of the population participates.
C. Reducing systematic differences between experimental groups.
D. Increasing participant motivation.
Correct Answer: C. Reducing systematic differences between experimental groups.
Explanation: Random assignment distributes participant characteristics across groups,
reducing bias and strengthening causal inference. It does not guarantee population
representation or eliminate all error.
QUESTION 6. Which measure of central tendency is least affected by extreme
outliers?
A. Mean
B. Median
C. Average deviation
D. Standard deviation
Correct Answer: B. Median
Explanation: The median represents the middle score and remains relatively stable
when extreme values occur. The mean is heavily influenced by outliers, while standard
deviation measures variability rather than central tendency.
Biological Bases of Behavior (Questions 7–12)
QUESTION 7. A patient experiences difficulty forming new long-term memories after
damage to a specific brain structure. Which structure is most likely affected?
A. Cerebellum
B. Hippocampus
C. Medulla
D. Occipital lobe
ANSWERS | COMPREHENSIVE STUDY GUIDE | UPDATED 2026/2027 EDITION
Examiner/Administrator: College Board
<div align="center">
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
ADVANCED PLACEMENT (AP) PSYCHOLOGY EXAM REVIEW
2026/2027 EDITION
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
COMPLETE PRACTICE EXAM
100+ ORIGINAL MULTIPLE-CHOICE PRACTICE QUESTIONS
PASSING TARGET: 70%+
SUGGESTED TESTING TIME: 120 MINUTES
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
TABLE OF CONTENTS
1. Scientific Foundations of Psychology
2. Research Methods and Statistics
3. Biological Bases of Behavior
4. Sensation and Perception
5. Learning
6. Cognitive Psychology
7. Developmental Psychology
8. Motivation, Emotion, and Personality
9. Clinical Psychology and Psychological Disorders
10. Social Psychology
COLLEGE BOARD || ALIGNED WITH CURRENT AP PSYCHOLOGY COURSE
FRAMEWORK || COMPREHENSIVE PRACTICE EXAM || VERIFIED ORIGINAL STUDY
,MATERIAL || BLUEPRINT-ALIGNED CONTENT || PROFESSIONAL EXAM PREPARATION ||
PREPARED FOR ADVANCED PLACEMENT ASSESSMENT || EDUCATIONAL USE ONLY
</div>
Scientific Foundations of Psychology (Questions 1–6)
QUESTION 1. A psychologist investigates whether sleep duration influences
students' memory performance by assigning participants to different sleep
schedules while controlling caffeine intake and testing conditions. Which
characteristic of this design most directly strengthens the study's internal validity?
A. Recruiting participants from several schools
B. Controlling extraneous variables that could influence memory
C. Using self-reported sleep quality
D. Increasing the sample size after data collection
Correct Answer: B. Controlling extraneous variables that could influence memory
Explanation: Internal validity refers to confidence that the independent variable
caused the observed changes in the dependent variable. Controlling confounding
variables such as caffeine consumption improves this confidence. Recruiting from
multiple schools improves external validity, self-reports may introduce bias, and
increasing the sample size after data collection does not address confounding
variables.
QUESTION 2. Which research method best allows psychologists to determine
whether one variable causes changes in another?
A. Case study
B. Naturalistic observation
C. Experiment
D. Survey
Correct Answer: C. Experiment
,Explanation: Experiments manipulate an independent variable while controlling other
factors, allowing researchers to infer causation. Case studies, observations, and surveys
primarily identify descriptions or correlations rather than cause-and-effect
relationships.
QUESTION 3. A researcher finds that stress and headaches are positively correlated.
Which conclusion is most appropriate?
A. Stress causes headaches in all individuals.
B. Headaches cause stress.
C. The variables are associated, but causation cannot be determined.
D. The correlation proves an experimental relationship.
Correct Answer: C. The variables are associated, but causation cannot be
determined.
Explanation: Correlation indicates a relationship but cannot establish causation
because third variables or reverse causation may exist. Experimental manipulation
would be needed to support causal conclusions.
QUESTION 4. Which ethical principle requires researchers to explain the true
purpose of a study after deception has been used?
A. Confidentiality
B. Debriefing
C. Random assignment
D. Informed sampling
Correct Answer: B. Debriefing
Explanation: Debriefing ensures participants understand the study's purpose, any
deception used, and have an opportunity to ask questions. Confidentiality protects
data, while random assignment and informed sampling are unrelated.
, QUESTION 5. Random assignment primarily helps researchers by:
A. Eliminating measurement error completely.
B. Ensuring every member of the population participates.
C. Reducing systematic differences between experimental groups.
D. Increasing participant motivation.
Correct Answer: C. Reducing systematic differences between experimental groups.
Explanation: Random assignment distributes participant characteristics across groups,
reducing bias and strengthening causal inference. It does not guarantee population
representation or eliminate all error.
QUESTION 6. Which measure of central tendency is least affected by extreme
outliers?
A. Mean
B. Median
C. Average deviation
D. Standard deviation
Correct Answer: B. Median
Explanation: The median represents the middle score and remains relatively stable
when extreme values occur. The mean is heavily influenced by outliers, while standard
deviation measures variability rather than central tendency.
Biological Bases of Behavior (Questions 7–12)
QUESTION 7. A patient experiences difficulty forming new long-term memories after
damage to a specific brain structure. Which structure is most likely affected?
A. Cerebellum
B. Hippocampus
C. Medulla
D. Occipital lobe
