AP Psychology Barron's Book Notes

2025 AP Psychology Premium - Barron's Notes

Front Cover

Notes:

  • The book is a premium edition for the 2025 AP Psychology exam.

  • It includes three full-length practice tests with detailed answer explanations.

  • Online practice is available with a timed test option and scoring.

  • The book provides comprehensive review and practice for all topics on the exam.

  • Expert tips and Barron's "Essential 5" things to know are included.

  • Authors: Allyson J. Weseley, Ed.D., and Robert McEntarffer, Ph.D.

Page 2

Notes:

  • Scan the QR code or go to online.barronsbooks.com to access practice materials.

Page 8: Table of Contents - Unit 0: Science Practices

1: History of Psychology

  • Psychological Perspectives

2: Research Methods

  • Overview

  • Hypotheses and Variables

  • Validity and Reliability

  • Experimental Method

  • Correlational Method

  • Naturalistic Observation

  • Qualitative Methods

3: Statistics

  • Overview

  • Descriptive Statistics

  • Correlations

  • Inferential Statistics

  • APA Ethical Guidelines

Page 8: Table of Contents - Unit 1: Biological Bases of Behavior

4: Biological Bases of Behavior

  • Overview

  • Genetics

  • Neuroanatomy

  • Nervous System

  • Endocrine System

  • The Brain

5: States of Consciousness

  • Overview

  • Levels of Consciousness

  • Drugs

  • Sleep

  • Dreams

6: Sensation

  • Overview

  • Energy Senses

  • Chemical Senses

  • Body Position Senses

Page 9: Table of Contents - Unit 2: Cognition

7: Perception

  • Overview

  • Thresholds

  • Perceptual Theories

  • Principles of Visual Perception

  • Effects of Culture on Perception

  • Extrasensory Perception

8: Thinking and Creativity

  • Overview

  • Describing Thought

  • Problem-Solving

  • Creativity

9: Memory

  • Overview

  • Three-Box/Information-Processing Model

  • Sensory Memory

  • Short-Term and Working Memory

  • Long-Term Memory

  • Levels of Processing Model

  • Encoding Memories

  • Storing Memories

  • Retrieval

  • Constructive Memory

  • Forgetting

10: Testing and Individual Differences

  • Overview

Page 10: Table of Contents

  • Standardization and Norms

  • Reliability and Validity

  • Types of Tests

  • Theories of Intelligence

  • Intelligence Tests

  • Nature vs. Nurture: Intelligence

Unit 3: Development and Learning

11: Developmental Psychology

  • Overview

  • Developmental Psychology Research Methods

  • Prenatal Influences

  • Motor/Sensory Development

  • Gender and Development

  • Stage Theories

  • Cognitive Development

  • Language

  • Parenting

12: Learning

  • Overview

  • Classical Conditioning

  • Operant Conditioning

  • Cognitive Learning

Page 10: Table of Contents - Unit 4: Social Psychology, Personality, Motivation, and Emotion

13: Social Psychology

  • Overview

  • Attribution Theory

  • Attitude Formation and Change

  • Compliance Strategies

  • Stereotypes, Prejudice, and Discrimination

  • Aggression and Antisocial Behavior

  • Prosocial Behavior

  • Attraction

  • The Psychology of Social Situations

  • Group Dynamics

14: Personality

  • Overview

  • Psychodynamic Theories of Personality

  • Humanistic Theories of Personality

  • Trait Theories

  • Social Cognitive Theories

15: Motivation and Emotion

  • Overview

  • Theories of Motivation

  • Hunger Motivation

  • Sexual Motivation

  • Social Motivation

  • Theories About Emotion

  • Nonverbal Expressions of Emotion

Page 11: Table of Contents - Unit 5: Mental and Physical Health

16: Health Psychology

  • Overview

  • Stress

  • Positive Psychology

17: Psychological Disorders

  • Overview

  • Defining Psychological Disorders

  • Categories of Disorders

  • The Advantages and Disadvantages of Diagnostic Labels

18: Treatment of Psychological Disorders

  • Overview

  • Types of Therapy

  • Kinds of Therapists

19: Multiple-Choice Test-Taking Tips

  • Overview

  • Test-Taking Strategies

  • Skills

Page 12: Table of Contents

20: Answering Free-Response Questions

  • Overview

  • Article Analysis Question (AAQ)

  • Evidence-Based Question (EBQ)

PRACTICE TESTS

  • Practice Test 1: Answer Explanations

  • Practice Test 2: Answer Explanations

Page 13: How to Use This Book

  • The book is aligned with the 2024 changes to the AP Psychology curriculum and the test, with revisions to the review content and an altered structure to match the new 5-unit structure.

  • It includes a revised "AP Psychology Course and Exam Description" and "Overview of the AP Psychology Exam."

  • A Unit 0 is included, which addresses the Science Practices essential to the exam's new focus on research.

  • Vocabulary terms are in bold and aligned with terms in the College Board’s Course CED items.

  • Science Practice Skill 2 and Skill 3 multiple-choice items are included with each chapter.

  • The test includes 75 multiple-choice items, each with 4 answer choices, requiring a greater depth of understanding and ability to apply concepts.

  • FRQ section and chapters are also updated.

Page 15: Barron's Essential 5

1. Psychology is a Science

  • Psychological researchers employ the scientific method to gather data and test hypotheses about the mind and behavior.

  • This approach contrasts with relying on intuition or common sense, which can offer contradictory ideas.

  • Unit 0 details how psychologists gather data and test hypotheses.

  • Understanding research methodology is vital for the exam.

2. Know the Psychological Perspectives

  • Psychological researchers study the mind and behavior from different "perspectives," each with unique research methods, concepts, and vocabulary.

  • Knowing the vocabulary and concepts associated with each perspective aids understanding of psychological theories.

  • Unit 0 introduces psychological perspectives, forming the basis for discussions of personality, psychological disorders, and their treatment in later units.

3. Know Your Terms

  • Specificity is vital.

  • Psychological terms refer to specific concepts and should not be confused with pop psychology or casual usage.

  • Example: Antisocial personality disorder refers to callous individuals, not those who are shy.

  • Learning encompasses more than education and includes classical and operant conditioning discussed in Unit 3.

  • Understanding scientific meanings of psychological terms is essential.

4. Application Is Key

  • The AP Psychology test measures knowledge of concepts and the ability to apply them.

  • Exam items require going beyond definitions by applying terms to scenarios or making connections.

  • Writing ability or creative expression is not emphasized; the focus is on assessing knowledge and application.

5. Improve Your Study Habits

  • Apply principles of cognition (Unit 2) to enhance study habits, such as distributed practice, chunking, mnemonics, and context cues.

  • Distributed practice (spacing studying over days or weeks) is more effective than massed practice (cramming).

  • The information-processing model suggests that focusing on meaning, context, and application increases recall.

  • Utilizing retrieval practice, through frequent small tests, can dramatically improve memory.

Page 18: AP Psychology Course and Exam Description

AP Psychology Course and Exam Description

  • Comparison of traditional chapters in college introductory psychology textbooks and the AP Psychology Course and Exam Description

  • Unit 0: Science Practices: research methods, data interpretation, and scientific argumentation. Infused throughout the curriculum and test

  • Unit 1: Biological Bases of Behavior: Heredity/environment, nervous system, neurons, brain, sleep, sensation. 15–25%

  • States of Consciousness, Sensation and Perception

  • Unit 2: Cognition: Perception, thinking/problem solving, memory, forgetting, intelligence. 15–25%

  • Cognition, Testing and Individual Differences

  • Developmental

  • Unit 3: Development and Learning: Physical and cognitive development, language, social-emotional development, conditioning. 15–25%

  • Learning

  • Unit 4: Social Psychology and Personality: Attribution theory, person perception, theories of personality, motivation, emotion. 15–25%

  • Motivation and Emotion, Personality, Social

  • Unit 5: Mental and Physical Health: Health, positive psychology, disorders. 15–25%

  • Disorders, Treatment

  • Science Practices are key

Page 19: Science Practices (Continued)

  • Tips in the text highlight necessary keys necessary for understanding concepts later. Some are keys necessary for understanding concepts later. They will be emphasized on the exam or are important for behavior understanding.

  • Terms in bold are found in the College Board's AP Psychology Course and Exam Description

Page 20: Science Practices

Science Practice 1: Concept Application

  • This skill involves using concepts, theories, terms, and perspectives from the AP Psychology curriculum.

  • Questions will require you to use knowledge rather than just recall it, relating concepts to specific scenarios and comparing them.

  • Examples and applications are emphasized during study.

  • About 65% of multiple-choice items (49 of 75) will be keyed to concept application, plus one of the five content units.

Science Practice 2: Research Methods and Design

  • This skill focuses on understanding how psychological researchers design studies and is covered in Unit 0.

  • 25% of multiple-choice items (about 18 of 75) will be keyed to research methods in addition to content units.

Science Practice 3: Data Interpretation

  • This skill entails analyzing quantitative data, numbers.

  • Researchers often try to measure psychological variables numerically and use statistical methods to interpret measurements.

  • About 10% of multiple-choice items (7 or 8 of 75) will be keyed to data interpretation.

Page 21: Science Practice 4: Argumentation

Science Practice 4: Argumentation.

  • The ability to create psychological arguments or claims based on evidence.

  • Only one of the free-response questions is keyed measure of the this skill, not the multiple-choice questions.

Practice Questions, Test Tips, and Practice Exams

  • Overview of the AP Psychology exam: Includes details about the structure of the exam, timing, and scoring.
    -Multiple-choice test-taking tips: Includes an analysis of the kinds of multiple-choice items you will see on the exam and a suggested process you can use to think your way through AP Psychology multiple-choice questions to determine the correct answer.
    -Answering the free-response questions: Includes descriptions of both free-response questions as well as complete sample questions and answers with an analysis of cognitive and educational psychologists using 3 three principles to make studying more efficient.

  1. Distributed Practice

  2. Meaning of Depth Processing

  3. Retrieval Practice

Page 24: Overview of AP Psychology Exam

Overview of the AP Psychology Exam

  • The exam has a multiple-choice section and a free-response section, totaling 2 hours and 40 minutes.

  • The multiple-choice section includes 75 four-choice questions, with 90 minutes allotted.

  • Scoring is based on the number of correct answers with no guessing penalty, encouraging an answer for every question.

  • The free-response section presents two questions: the Article Analysis Question (AAQ) and the Evidence-Based Question (EBQ).

  • 70 minutes for it: AAQ (25 min) and EBQ (45 min).

  • The multiple-choice section accounts for 66.7% of the final composite score, and the free-response section accounts for 33.3%.

  • More info on score from College Board.

Page 26: Unit 0 - Science Practices

UNIT 0: Science Practices

  • Focuses on current psychological perspectives and research methods.

  • Emphasised in textbook in the history and research methods chapters

  • Research methods concepts are very important throughout the curriculum

  • Asked to apply research methods to answer multiple-choice questions from each unit and in the free-response questions.

Page 27: CHAPTER 1 - History

1 History of Psychology

  • Learning Objectives: Psychological perspectives

Psychological Perspectives

  • Psychologists look at human thought and behavior from different perspectives, categorized into eight broad categories:

    • Humanistic

      • Individual choice and free will are stressed.

      • Theorists: Abraham Maslow and Carl Rogers.

      • Humanists believe we choose our behaviors based on physiological, emotional, or spiritual needs.

      • Limited testing with scientific method, more historical perspective than current.

    • Psychodynamic

      • Emphasizes the unconscious mind controls thought and action, looking for repressed impulses.

      • Psychoanalysts use dream analysis, word association, and therapy techniques to examine the unconscious mind.

    • Biopsychology (or Neuroscience)

      • Biological processes influence human cognition and reactions through genes, hormones, and neurotransmitters.

      • Growing rapidly to a branch of the science of biology.

    • Evolutionary (or Darwinian)

      • Thoughts and actions in terms of natural selection.

      • Traits advantageous for survival are passed down. Perspective examines human

      • Extroversion could be example of an advantageous for person to be outgoing to make friends and allies.

      • Subsets biopsychology perspective

    • Behavioral

      • Uses observable behaviors and responses to stimuli.

      • Conditioning in psychology.

      • Environmental condition reward/punishment create extroverted response.

    • Cognitive

      • Emphasizes how we interpret process and remember to understand enviornmental events in the world

      • Cognitions are developed in stages as we mature.

      • Cognitions and extroverted people interpret those situations in a way that makes sense.

    • Social-Cultural (or Sociocultural)

      • Influence culture has on how we think and act. Thoughts and behaviors vary among cultures

      • Examining culture's rules about social interaction to explain extraversion.

    • Biopsychosocial

      • Combines of biological, psychological, and social. Focus on the combination of influences
        Reductionistic: Some are too focused on specific influences on thinking and behavior.

Page 30: Chapter 1 - Summary

Summary

  • Psychologists might agree with each perspective having valid explanations based on the situation.

  • eclectic:

    • Not one perspective has all answers.

    • Various perspectives are dependent on specific point of view.

    • Perspectives might be combined, or new perspectives emerge as research continues.

Page 31: CHAPTER 2 - Research Methods

2 Research Methods

  • Learning Objectives

    • Experimental method

    • Correlational method

    • Naturalistic observation

    • Case studies

Key Terms

  • Hindsight bias

  • Confirmation bias

  • Overconfidence

  • Quantitative research

  • Qualitative research

  • Hypothesis

  • Dependent variable

  • Independent variable

  • Falsifiable

  • Operational definitions

  • Replicated

  • Sample

  • Population

  • Representative sample

  • Random sampling

  • Convenience sampling

Page 32: CHAPTER 2 Cont…

Key Terms Cont…

  • Generalize

  • Stratified sampling

  • Confounding variables

  • Random assignment

  • Experimenter bias

  • Double-blind study

  • Single-blind study

Overview

  • Intuition can lead us astray.

  • Hindsight bias: Upon hearing about research findings, people tend to think they knew it all along.
    -Goal of scientific research: To predict what will happen in advance.
    -Confirmation bias: Tendency to pay more attention to information that supports preexisting ideas.
    -Overconfidence: Tendency to be overconfident about what one believes.
    -Understanding of research methods is fundamental to AP psychology.
    -AP exam now puts more emphasis on research methods than ever before.
    -Sometimes psychologists conduct research to solve practical problems or they can do basic research.

  • Research can also be divided into quantitative and qualitative research. Quantitative research Quantitative research uses numerical measures, while qualitative research typically uses more complex textual responses and looks for key themes within them.

Hypotheses and Variables

-Hypothesis often grow out of theories. A theory that aims to explain some phenomenon and allows hypotheses to researchers who generate test questions with the hope of collecting data to support the theory.

  • Basic research: Explore questions of interest to psychologists but not intended to have an immediate real-world application.

  • Must be possible to gather data that would controvert the hypothesis which will be be falsifiable. It is essential the hypotheses be falsifiable; that is, it must be possible to gather data that would controvert the hypothesis
    -Researchers need to name the variables they will study must also name the operational definition which will also explain how you will measure

  • Variable, is a thing that can vary
    -Experimental hypothesis: The dependent variable (change behavior) depend on Independent on Independent variable (watching violence program).

Page 34: CHAPTER 2 Cont…

Validity and Reliability

  • Good research both valid and reliable.

    • Research Validity (accuracy):
      -measures what the researcher set out to measure

    • Research Reliability (consistency):

      • it can be replicated.
        Sampling is the process by which participants are selected which will be used as subjects on the research.
        To select a sample (the group of participants), one must first identify the population from which the sample will be selected. The population includes anyone or anything that could possibly be selected to be in the sample.. The goal in selecting a sample is that it be representative of a larger population. This is called a representative sample. Random selection increases the likelihood that the sample represents the population from which it was drawn, and this is Called Random Sample.
        -The use of own student research will an example of convenience sampling, collecting data from a group of people who are easily accessible to use.

  • Note that psychologist use the term random differently than the laypeople. Random sampling is best done using a computer, a table of random numbers, or that tried-and-true method of picking names out of a hat.

Page 36: CHAPTER 2 Cont…

Experimental Method

The extent to which laboratory experiments can be controlled is their main advantage. The advantage of field experiments is that they are more realistic. Psychologists' preferred method of research is the experiment because only through a carefully controlled experiment can one show a cause-effect relationship. An experiment allows the researcher to manipulate the independent variable and control for Confounding variables.
Random Assignment: Means each participant has an equal chance of being placed into either group. The benefit of r is that it limits the effect of participant-relevant confounding variables Assignment is the process by which participants are put into a group, whether experimental or control. The benefit of random assignment is that it limits the effect of participant-relevant confounding variables.
TIP Random assignment controls for participant-relevant confounding variables. Students sometimes confuse random assignment and random sampling. Although both involve randomization, sampling is the process of choosing the research participants from the population, and it happens before assignment assignment is the process of dividing participants into groups (for example, experimental and control), and it cannot be done until after you have identified the sample Difference between groups what we are referring to the group average. If one wanted to ensure that the experimental and control groups were equivalent on some criterion (e.g., ex scores age, one could use group matching. Situation-relevant confounding variables can also affect an experiment.

Page 38: CHAPTER 2 Cont…

Experimenter bias: is a special kind of situation-relevant confounding variable the unconscious tendency for researchers to treat members of the experimental and control groups differently to increase the chance of confirming the researchers hypothesis. Note that experimeter bias is not conscious act if a researcher purposely distort this is called fraud.
Double Blind Process eliminated be using a blind procedure. A double-blind study occurs when neither the participants nor the researcher are able to affect the outcome research. A double blind can be accomplished number of ways. The most common is for the researcher to have someone assigned to the participant.
Single-blind study: occurs when only the participants do not know to which group they have been assigned and this strategy minimizes effect demand characteristics as well as certain kinds of response participants.
Response or subject bias: Tendency for pat in study to behave in certain ways.
Important response social desire bias: tendency to try upon oneself is called social desire.
control group serves as basis for comparison of groups otherwise impossible. This findings also known as Hawthorne effect.
Important control method is placebo method when participants the treatment operationalize variable. This technique allows physiological effect the drug because psychological and people thinking call the placebo.
Counter balancing: Participants as their own control group. This procedure creates the possibility order effect. This problem can be be eliminated by using counterbalancing.

Page 38: CHAPTER 2 Cont…

Correlational Method

A correlation expresses a relationship between two variables without describing cause
A positive correlation means the presence of one predicts the other
A negative correlation presence of 1 absence of the other.
a correlation means no relationship exists.

  • testing a hypothesis with experiment is not possible, use correlation method or ex post facto. (Quasi-experimental) study because I cannot randomly assign participants to conditions. Some people are retired, and others are working. The assignment of the independent variable, in this case, has been predetermined.
    Survey Method: asking people to fill out surveys with like scale (degree of agreements).

Page 40: CHAPTER 2 Cont…

The original hypothesis, that watching violent television programs makes people more aggressive, cannot be tested using the survey method, because only an experiment can reveal a cause-effect relationship. However, one could use the survey method to investigate whether there is a relationship between the two variables, watching violence on television, and aggressive behavior. In the survey method, neither of the variables is manipulated. Therefore, although two variables are measured, there is no independent or dependent variable. As a result, the researcher cannot conclude that one of the variables causes the other. It may be that watching violent television causes aggression, but it is also possible that aggressive people are drawn to watch violent television. The inability to tell which of the variables came first (also known as temporal precedence) is called the directionality problem. It is also possible that a third variable—for instance, a genetic predisposition—causes both the love of violent television and one's aggressive behavior. In this case, there is no real relationship between the two variables being studied at all, and the correlation is known as a spurious (false) correlation.
TIP Note that surveys can be used as part of the experimental method where dependent variables are measured using surveys.
TIP Survey Method: a kind of correlation research not controlling participant-relevant confounding variable by by bringing all participants to one place surveys for people to fill out at their convience (difficult to do) is but one of many controlling variables.

Page 41: CHAPTER 2 Cont…

Naturalistic Observation

Opt to observe participants in natural habitat without interacting which is consider less controlling.
TIP Both experiments and natural observation involve out in world natural observations don't impact/ manipulate any aspects in the experiment compared experiments which requires a manipulated the independent variable while attempted eliminating much comf variables.

Qualitative Methods

Although many ser comprised item that participants from a set choices, they also include the open in the question's their participant responsed. Instead of survey something collecting quality data might conduct you with one person on a small focus group from number of in the same time intervals from variable based on struture interviews asked prescribed number
Another quality method is the case study where the case to give full and detail. example clinical psy

Page 43: Chapter 3- Statistics

3 Statistics

  • Learning Objectives

    • Descriptive statistics

    • Correlations

    • Inferential statistics

    • APA Ethical Guidelines

Key Terms

  • Central tendency

    • Mean

    • Median

    • Mode

    • Bimodal

  • Positively skewed

  • Negatively skewed

  • Range

  • Variance

  • Standard deviation

  • Normal curve

  • Percentiles

  • Correlation

    • Correlation coefficient

    • Scatterplot

  • Statistically significant

Key Terms Cont….

  • Effect size

  • Replication

  • Meta-analysis

  • Peer review

  • No coercion

  • Informed consent

  • Deception

  • Informed assent

  • Confidentiality

  • Risk

  • Protection from harm

  • Debriefing

Overview of Statistics

  • Relevant to one of the skills the College Board identified to measure on the AP Psychology test
    Called Science Practice 3 Understanding and making inferences basic numerical data

  • Make sure you use the system and processes to understand the terms using questions to make sure.

Descriptive Statistics

Descriptive statistics describe a set data creating a frequency distribution or line graphs called the frequency polygons or bar graphs known y-axes vertical axis, x axes the horizontal measure called measures of central tendency(center distributed)
Central Tendencies includes the mean

Page 45: Chapter 3- Statistics Cont…

mean:
- average adding distribution divide by how many, most common but distort.
Median:
- central score by ascending where ever number it over the average
more low less outlier score higher the better. mean is always the higher than the median opposite
range:
- the distance between highest and lowest scores in a distribution, high distribution spread.
z score distances:
- distance a score standard which below distance to negative score to from distribution.
normal curves fall:
- between 1 sd 68% of scores.
- between of 2 scores, 95 fall scores