Psychology 101
Introduction to Psychology surveys the scientific study of behavior and mental processes, covering research methods, neuroscience, sensation and perception, consciousness, learning, memory, cognition, development, motivation, personality, social psychology, abnormal psychology, and therapy.
Who Should Take This
Ideal for high school and college students taking their first psychology course who want a comprehensive foundation in how psychologists study and explain human behavior and mental processes. No prior background is required; the course is broadly applicable to education, health, business, and everyday life.
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Adaptive Knowledge Graph
Practice Questions
Lesson Modules
Console Simulator Labs
Exam Tips & Strategy
13 Activity Formats
Course Outline
1History, Approaches, and Research Methods 8 topics
Describe the major historical perspectives in psychology including structuralism, functionalism, psychoanalysis, behaviorism, humanistic psychology, cognitive psychology, and the biological approach, and identify the key theorist associated with each
Describe research methods used in psychology including case studies, naturalistic observation, surveys, and experiments, and explain the trade-offs between internal validity and external validity across different designs
Apply experimental design principles to a research scenario by identifying the independent variable, dependent variable, control group, experimental group, and potential confounds, and explain why random assignment is necessary for causal inference
Apply the distinction between correlation and causation to evaluate psychological research claims and explain why a positive or negative correlation between two variables does not establish that one causes the other
Describe the APA ethical guidelines for human and animal research including informed consent, deception disclosure, debriefing, confidentiality, and how ethical constraints balance scientific progress with participant protection
Apply statistical reasoning to interpret basic descriptive statistics (mean, median, mode, standard deviation) and explain how statistical significance, effect size, and replication relate to drawing valid psychological conclusions
Analyze the replication crisis in psychology by explaining why many classic findings failed to replicate, what this reveals about publication bias and p-hacking, and how open science practices such as pre-registration and larger sample sizes improve reliability
Describe the major perspectives currently used in psychology including the biopsychosocial model integrating biology, psychology, and culture, the evolutionary perspective explaining behavior as adaptation, and the cognitive neuroscience approach connecting mental processes to brain structures
2Biological Bases of Behavior 7 topics
Describe neuron structure and function including the roles of dendrites, soma, axon, myelin sheath, and terminal buttons, and explain how an action potential is generated and propagated along the axon
Describe synaptic transmission including the release of neurotransmitters into the synaptic cleft, receptor binding, reuptake, and the effects of agonist and antagonist drugs on neurotransmitter systems such as dopamine, serotonin, GABA, and acetylcholine
Identify the major brain structures and their functions including the brainstem (medulla, pons), cerebellum, limbic system (amygdala, hippocampus, hypothalamus), and the four cortical lobes and their associated functions
Apply the nature-nurture framework to evaluate how genetic heritability studies, twin research, and adoption studies inform debates about whether intelligence, personality, and psychological disorders are primarily shaped by genes or environment
Describe brain imaging and study methods including EEG, CT, MRI, fMRI, and PET scans, and explain what each method measures and its relative strengths in spatial versus temporal resolution
Describe the endocrine system's role in behavior including the functions of major hormones (cortisol in stress, testosterone in aggression, oxytocin in bonding, melatonin in sleep) and explain how the HPA axis mediates the fight-or-flight stress response
Apply the plasticity concept to explain how the brain can reorganize following injury through synaptic pruning, neurogenesis in the hippocampus, and experience-dependent rewiring, and identify the implications for rehabilitation after stroke or traumatic brain injury
3Sensation, Perception, and Consciousness 7 topics
Distinguish sensation from perception and explain absolute thresholds, difference thresholds (Weber's law), signal detection theory, and sensory adaptation using examples from vision and hearing
Apply Gestalt principles of perceptual organization including figure-ground, proximity, similarity, continuity, and closure to real-world visual examples and explain how the brain actively constructs perception from sensory input
Describe the circadian rhythm, the stages of sleep including NREM and REM sleep cycles, the functions of sleep for memory consolidation and health, and common sleep disorders including insomnia, sleep apnea, and narcolepsy
Describe the major categories of psychoactive drugs including depressants, stimulants, opiates, and hallucinogens, and explain their mechanisms of action at the synapse and behavioral and psychological effects
Analyze how top-down processing involving prior knowledge and expectations interacts with bottom-up sensory data to produce perception and explain why this makes human perception constructive rather than a passive recording of reality
Describe depth perception cues including binocular cues (retinal disparity, convergence) and monocular cues (linear perspective, texture gradient, interposition, relative size, motion parallax) and explain how the brain integrates them to construct a three-dimensional world from flat retinal images
Apply the concept of perceptual set to explain how expectations, context, and prior experience bias what we perceive — why a technician in a busy radiology department misses a gorilla on a scan — and describe the Simons and Chabris inattentional blindness experiments demonstrating how focused attention causes observers to miss salient unexpected stimuli
4Learning and Memory 9 topics
Describe classical conditioning including Pavlov's original experiment, acquisition, extinction, spontaneous recovery, generalization, discrimination, and higher-order conditioning, and identify the neutral stimulus, CS, US, CR, and UR in example scenarios
Describe operant conditioning including Skinner's contributions, positive and negative reinforcement, positive and negative punishment, primary and secondary reinforcers, and continuous versus partial reinforcement schedules and their effects on response rate and extinction resistance
Apply observational learning theory to explain Bandura's Bobo doll experiments, the role of model characteristics and consequences in imitation, and how vicarious reinforcement and punishment shape behavior without direct experience
Describe the memory system including sensory memory (iconic and echoic), short-term working memory capacity limitations, and long-term memory (explicit: semantic and episodic; implicit: procedural and priming) and explain encoding, storage, and retrieval processes
Apply Ebbinghaus's forgetting curve and theories of forgetting including encoding failure, decay, interference (proactive and retroactive), and motivated forgetting to explain why people fail to remember information they once knew
Analyze the reconstructive nature of memory by explaining Loftus's eyewitness research, misinformation effects, source monitoring errors, and flashbulb memory, and evaluate the implications for eyewitness testimony reliability in legal contexts
Apply the spacing effect and retrieval practice research to explain why distributed studying and self-testing produce stronger long-term retention than massed practice and re-reading, and identify the practical implications for effective learning strategies
Describe biological constraints on learning including taste aversion conditioning as an example of prepared learning, the concept of biological preparedness for certain fear associations, and how these constraints challenge the behaviorist assumption that all stimuli and responses are equally associable
Analyze the debate about the existence of latent learning and insight learning by describing Tolman's cognitive maps in rats and Köhler's insight experiments with chimpanzees and evaluating what these findings reveal about the limitations of strict behaviorist accounts of learning
5Development, Motivation, and Emotion 10 topics
Describe Piaget's four stages of cognitive development — sensorimotor, preoperational, concrete operational, and formal operational — identifying the key cognitive achievement and limitation of each stage
Apply Vygotsky's zone of proximal development and scaffolding concepts to explain how social interaction and adult guidance accelerate cognitive development in children beyond what they could achieve independently
Describe Erikson's eight psychosocial stages including each stage's central conflict, the positive resolution, and the typical age range, and apply the model to explain identity formation in adolescence and generativity in middle adulthood
Describe Ainsworth's attachment styles including secure, anxious-avoidant, and anxious-ambivalent, explain the Strange Situation procedure, and apply attachment theory to predict effects on adult relationship patterns
Apply Maslow's hierarchy of needs and compare intrinsic versus extrinsic motivation theories to predict when rewarding behavior with external incentives can reduce intrinsic interest through the overjustification effect
Apply the three major theories of emotion — James-Lange (physiological response precedes emotion), Cannon-Bard (simultaneous), and Schachter-Singer two-factor (arousal plus cognitive label) — to interpret emotional scenarios and evaluate the evidence for each theory
Analyze the interplay between biological maturation and social experience in shaping adolescent identity development drawing on Erikson's identity versus role confusion stage, Marcia's identity statuses, and the neuroscience of adolescent risk-taking
Describe Kohlberg's three levels of moral development — preconventional, conventional, and postconventional — and apply his Heinz dilemma to identify reasoning at each level, evaluating Gilligan's feminist critique of Kohlberg's male-biased sample
Describe the psychology of aging including cognitive changes in late adulthood, the distinction between fluid and crystallized intelligence across the lifespan, successful aging models, and Kübler-Ross's five stages of grief as applied to terminal illness and bereavement
Analyze the debate about the existence and universality of basic emotions by evaluating Ekman's cross-cultural facial expression research supporting universal basic emotions against constructionist perspectives arguing that emotions are culturally learned interpretations of arousal states
6Personality, Intelligence, and Social Psychology 9 topics
Describe the major personality theories including Freud's psychoanalytic model (id, ego, superego, defense mechanisms), humanistic theory (Rogers's self-concept and unconditional positive regard), and the Big Five trait dimensions (OCEAN)
Describe theories of intelligence including Spearman's general intelligence (g), Gardner's theory of multiple intelligences, and Sternberg's triarchic theory, and evaluate the evidence and criticisms of each approach
Apply social influence research to explain conformity using Asch's line experiments, obedience using Milgram's shock experiments, and identify the situational factors that increase or decrease compliance with authority and group pressure
Apply attribution theory to distinguish between fundamental attribution error (overweighting dispositional causes), self-serving bias, and actor-observer bias, and explain how these errors distort social judgments in everyday life
Describe group dynamics phenomena including social facilitation, social loafing, groupthink, deindividuation, and bystander effect and apply diffusion of responsibility to explain why individuals are less likely to help in the presence of others
Analyze how in-group/out-group dynamics, stereotyping, prejudice, and discrimination are psychologically distinct processes and evaluate how realistic conflict theory, social identity theory, and contact hypothesis each explain and address intergroup bias
Apply cognitive dissonance theory to explain why people change their attitudes to align with their behavior when they cannot justify that behavior externally, and provide examples from social influence, consumer psychology, and health behavior
Describe the trait theory of personality in detail including McCrae and Costa's Five Factor Model (OCEAN), the evidence from twin and longitudinal studies supporting the heritability and cross-situational consistency of the Big Five dimensions, and how they predict real-world outcomes
Apply the person-situation debate to evaluate Mischel's argument that cross-situational consistency in behavior is lower than trait theory predicts and assess the resolution offered by interactionist approaches that emphasize the interaction between stable traits and situational contexts
7Abnormal Psychology and Therapy 10 topics
Describe the criteria used to define abnormal behavior including distress, dysfunction, deviance, and danger, explain the role of the DSM-5 in diagnosis, and identify the major categories of psychological disorders covered in an introductory survey
Describe anxiety disorders including generalized anxiety disorder, panic disorder, specific phobias, social anxiety disorder, and PTSD, and explain the cognitive-biological model of how fear conditioning and catastrophic thinking maintain anxiety
Describe mood disorders including major depressive disorder and bipolar disorder, explain the biological (monoamine hypothesis), cognitive (Beck's negative triad), and sociocultural risk factors, and distinguish unipolar from bipolar presentations
Describe schizophrenia including positive symptoms (hallucinations, delusions, disorganized speech), negative symptoms (flat affect, alogia, avolition), and the dopamine hypothesis, and explain why schizophrenia is distinct from dissociative identity disorder
Describe the major psychotherapy approaches including psychoanalytic, humanistic/person-centered (Rogers), behavioral exposure therapy, cognitive-behavioral therapy (CBT), and explain the theoretical basis and target behaviors for each approach
Apply cognitive-behavioral therapy principles to explain how automatic negative thoughts, cognitive distortions, and maladaptive behaviors are identified and restructured, and describe the evidence base for CBT across anxiety, depression, and other disorders
Analyze how the biopsychosocial model integrates biological, psychological, and sociocultural factors to explain the onset and maintenance of psychological disorders and evaluate why this framework is more complete than purely biological or purely cognitive explanations
Describe biomedical treatments for psychological disorders including antidepressants (SSRIs, SNRIs), antipsychotics, mood stabilizers, anxiolytics, and electroconvulsive therapy, explaining their mechanisms of action and the evidence base for combining medication with psychotherapy
Describe dissociative disorders, somatic symptom disorders, eating disorders (anorexia, bulimia, binge eating), and substance use disorders including their diagnostic criteria, theoretical causes, and common evidence-based treatments
Analyze the deinstitutionalization movement of the 1960s-1980s by evaluating its rationale in patient rights and new drug treatments, its consequences including homelessness and incarceration of the mentally ill, and what its outcomes reveal about the challenges of community-based mental health care
Scope
Included Topics
- History and approaches (structuralism, functionalism, behaviorism, psychoanalysis, humanism, cognitive, sociocultural, biological, evolutionary approaches; major figures including Wundt, James, Freud, Watson, Maslow, Bandura); research methods (descriptive, correlational, experimental; independent and dependent variables; operational definitions; control and experimental groups; sampling; ethical principles in research; statistics basics: mean, median, mode, standard deviation, significance); biological bases of behavior (neuron structure and function, neurotransmitters, nervous system divisions, brain structures and lobes, endocrine system, genetics and behavior, methods of brain study); sensation and perception (absolute and difference thresholds, signal detection theory, sensory adaptation, visual system and perceptual organization, Gestalt principles, depth perception, perceptual constancy, top-down and bottom-up processing, audition, other senses); consciousness and sleep (levels of consciousness, circadian rhythms, sleep stages and REM, sleep disorders, dreams, hypnosis, psychoactive drug categories and effects); learning (classical conditioning: Pavlov, acquisition, extinction, generalization, discrimination; operant conditioning: Skinner, reinforcement schedules, punishment, shaping; observational learning: Bandura, modeling, vicarious reinforcement); memory (encoding, storage, retrieval; sensory, short-term, long-term memory; working memory model; long-term memory types; forgetting curves and theories; reconstructive memory; mnemonics); cognition and problem solving (concepts and prototypes, problem-solving strategies, heuristics and cognitive biases, language and the Sapir-Whorf hypothesis, Chomsky's LAD); motivation and emotion (drive reduction theory, Maslow's hierarchy, intrinsic vs. extrinsic motivation, theories of emotion: James-Lange, Cannon-Bard, Schachter-Singer two-factor, facial feedback); development (prenatal development, Piaget's cognitive stages, Vygotsky's zone of proximal development, Erikson's psychosocial stages, Kohlberg's moral development, attachment theory and Ainsworth, adolescence and identity, adulthood and aging); personality (Freud's psychoanalytic theory: id/ego/superego, defense mechanisms; neo-Freudian approaches; humanistic theory: Rogers, Maslow; trait theory: Big Five; social-cognitive theory); intelligence (theories: Spearman's g, Gardner's multiple intelligences, Sternberg's triarchic; IQ testing, reliability and validity, normal distribution, debate over nature vs. nurture in intelligence); social psychology (conformity: Asch; obedience: Milgram; attitudes and persuasion; cognitive dissonance; attribution errors; group behavior: social facilitation, groupthink, bystander effect, deindividuation; prejudice and discrimination); abnormal psychology (DSM-5 overview, anxiety disorders, mood disorders including depression and bipolar, schizophrenia, personality disorders, OCD, PTSD); therapy approaches (psychoanalytic, humanistic/person-centered, behavioral, cognitive-behavioral CBT, biomedical treatments and psychopharmacology)
Not Covered
- AP Psychology exam-specific strategies and test tips
- Industrial-organizational psychology in depth
- Advanced neuroimaging methodology details
- Clinical licensure and professional practice standards
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