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Psychology Foundations

Key experiments, theories, and figures in psychology

20 cards · science

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Cards (20)

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Classical conditioningLearning via pairing a neutral with an unconditioned stimulus
Pavlov showed dogs salivated to a bell after pairing with food.
Operant conditioningBehavior shaped by consequences of reinforcement and punishment
Skinner demonstrated control of response rates with reinforcement schedules.
Little AlbertConditioned an infant to fear a white rat using loud noise
Watson and Rayner’s methods and the child’s identity are disputed; unethical by today’s standards.
Asch conformityIndividuals often align judgments with a unanimous group
About 75% conformed at least once; effect varies by context and has mixed replications.
Milgram experimentMany obeyed orders to deliver apparently dangerous shocks
About 65% reached maximum voltage; partial replications show similar trends with nuances.
Stanford prison experimentSimulated prison roles escalated into abusive behavior
Procedures and demand characteristics criticized; findings failed to replicate cleanly.
Bystander effectMore bystanders can mean less likelihood of helping
Darley and Latané’s effect appears smaller and context-dependent in modern analyses.
Robbers CaveRival groups reduced conflict via shared superordinate goals
Sherif’s camp study supports realistic conflict theory on intergroup relations.
Harlow rhesus monkeysInfants preferred cloth comfort to a wire food source
Contact comfort proved central to attachment; methods drew major ethical criticism.
Strange SituationStructured observation classifying infant attachment styles
Ainsworth identified secure, avoidant, ambivalent; distributions vary across cultures.
Marshmallow testDelayed gratification weakly predicts later outcomes when controls added
Effects shrink when socioeconomic and environmental factors are controlled.
Misinformation effectPost-event information distorts memory of the original event
Loftus and Palmer showed leading questions altered car-speed estimates.
Stroop effectAutomatic word reading interferes with color naming
A robust index of selective attention and inhibition across many settings.
Working memory capacityAbout four chunks under typical conditions
Later work (e.g., Cowan) revises Miller’s 7±2 to roughly four chunks.
Cognitive dissonanceDiscomfort from inconsistency motivates attitude change
Festinger and Carlsmith found $1 induced more liking than $20 due to dissonance.
Hierarchy of needsNeeds prioritized from physiological to self-actualization
Iconic pyramid with mixed empirical support and cultural caveats.
Big FiveFive broad dimensions capture much personality variation
OCEAN traits show cross-cultural presence and relative stability.
PsychoanalysisTheory and therapy centered on unconscious conflict
Historically pivotal; many claims lack falsifiability and strong empirical support.
Cognitive behavioral therapyTime-limited, structured treatment targeting thoughts and behaviors
Evidence-based for depression and anxiety; teaches skills to prevent relapse.
Learned helplessnessUncontrollable aversive events produce passive behavior later
Reformulated to emphasize attributional style; animal studies raised ethical issues.