A-Level Psychology Study Guides

Cognitive psychology examines how human memory encodes, stores, and retrieves information. This guide covers Atkinson and Shiffrin's Multi-Store Model, Baddeley and Hitch's Working Memory Model, types of long-term memory, explanations for forgetting (interference and retrieval failure), and factors affecting eyewitness testimony.

Attachment refers to the reciprocal, enduring emotional bond between an infant and their primary caregiver. This guide covers caregiver-infant interactions, learning theory vs Bowlby's monotropic theory, Ainsworth's Strange Situation classification, cultural variations, and the effects of maternal deprivation and institutionalisation.

Social influence examines how an individual's behaviour, attitudes, and beliefs are shaped by a social group or an authority figure. This guide covers Kelman's types of conformity, Asch's line study, Zimbardo's Stanford prison study, Milgram's obedience research, dispositional and situational explanations, and minority influence.

Social Influence opens Paper 1 in AQA and OCR A-Level Psychology by asking why ordinary individuals alter their behaviour, attitudes, and beliefs when placed in a group or given an institutional social role. To score top-band AO1 and AO3 marks in 16-mark essays, you must distinguish Kelman's three levels of conformity, link Informational and Normative Social Influence to cognitive vs emotional processes (and research support like Lucas et al. and Asch), recall exact baseline and variation percentages from Solomon Asch's (1951, 1955) line judgement experiments, and critically evaluate Philip Zimbardo's (1973) Stanford Prison Experiment against Reicher and Haslam's (2006) BBC Prison Study.

Why did ordinary citizens participate in the Holocaust, and how do small activist movements like the Suffragettes or Civil Rights campaigners overturn deeply entrenched majority norms? The second half of Social Influence answers both questions. You must learn Stanley Milgram's (1963) electric shock experiment and his situational variations (proximity, location, and uniform), compare situational explanations (Agentic State and Legitimacy of Authority) against Adorno's dispositional Authoritarian Personality, explain resistance through Social Support and Locus of Control, and trace how Moscovici's Minority Influence drives whole-society social change via the snowball effect and social cryptoamnesia.

Approaches in Psychology (Paper 2) provides the theoretical lens through which every topic in psychology is explained and evaluated. Whether you are writing a 16-mark comparison essay or applying an approach to a stem scenario, you must know the core assumptions, key researchers, and evaluation points for all six major perspectives: the Behaviourist Approach (classical and operant conditioning), Social Learning Theory (vicarious reinforcement and mediational processes), the Cognitive Approach (internal mental processes, schemas, and cognitive neuroscience), the Biological Approach (genetics, neurochemistry, and evolution), the Psychodynamic Approach (Freud's tripartite personality and defence mechanisms), and the Humanistic Approach (free will, self-actualisation, and conditions of worth).

Research Methods accounts for 25% to 33% of all marks across A-Level Psychology (including a dedicated 48-mark section on AQA Paper 2 and embedded design/critique questions in every single topic). Examiners penalise vague answers ruthlessly: you will never score full marks for a hypothesis unless your Independent Variable (IV) and Dependent Variable (DV) are fully operationalised in measurable units, and you must know not just how to identify extraneous variables, demand characteristics, or low reliability/validity, but exactly how to fix them using counterbalancing, standardisation, single/double-blind procedures, and test-retest or inter-observer checks.

Inferential statistical testing is the highest-tariff calculation skill in A-Level Psychology. Every year, students are asked to justify which statistical test should be used for a given research scenario using three criteria (test of difference vs correlation, experimental design, and level of measurement), calculate the Sign Test from a raw table of paired scores, use a critical values table to determine significance at p ≤ 0.05, and explain why choosing a 1% (p ≤ 0.01) vs 10% (p ≤ 0.10) significance level trades off Type I (false positive) against Type II (false negative) errors.

Issues and Debates (Paper 3) is both a standalone 24-mark section and a reliable way to earn Top-Band AO3 evaluation marks in every 16-mark essay across Papers 1, 2, and 3. Instead of memorising disconnected evaluation points, learning these six overarching debates: Gender Bias (alpha, beta, androcentrism), Cultural Bias (ethnocentrism and imposed etics), Free Will vs Determinism (hard, soft, biological, environmental, psychic), Nature vs Nurture (interactionism, diathesis-stress, epigenetics), Holism vs Reductionism (levels of explanation), and Idiographic vs Nomothetic approaches, plus Socially Sensitive Research (Sieber & Stanley) equips you to critique any study or theory in psychology.

Schizophrenia is a severe psychotic disorder affecting roughly 1% of the global population, characterised by a profound disruption in thought processes, perception, and contact with reality. In Paper 3, you must distinguish positive symptoms (hallucinations and delusions) from negative symptoms (avolition and speech poverty), evaluate the reliability and validity of DSM-5 and ICD-10/11 diagnosis (co-morbidity, symptom overlap, and gender/culture bias), contrast biological explanations (Gottesman's genetics, Ripke's polygenic risk, and the revised hyper/hypodopaminergia hypothesis) with psychological explanations (Fromm-Reichmann, Bateson's double-bind, Expressed Emotion, and Frith's cognitive model), and evaluate typical/atypical antipsychotics, CBTp, family therapy, and token economies.

The Psychology of Relationships (Paper 3 Option) traces romantic relationships from evolutionary mate selection and initial interpersonal attraction through long-term maintenance and relationship breakdown, plus modern virtual and parasocial relationships. To excel in 16-mark essays, you must explain Trivers' (1972) parental investment theory and anisogamy using Buss's (1989) 37-culture study, evaluate three factors in attraction (Self-Disclosure, Physical Attractiveness / Matching Hypothesis, and Kerckhoff & Davis's Filter Theory), compare economic maintenance theories (Thibaut & Kelley's Social Exchange Theory, Equity Theory, and Rusbult's Investment Model), and apply Duck's (1982, 2007) Phase Model of Breakdown.

Forensic Psychology (Paper 3 Option) applies psychological theory to the criminal justice system, from narrowing down a suspect list using crime scene evidence to explaining why individuals commit crime and how offenders can be rehabilitated to prevent recidivism. You must contrast the American Top-Down FBI typology (Organised vs Disorganised) with David Canter's British Bottom-Up approach (Investigative Psychology and Geographical Profiling), trace biological explanations from Lombroso's historical Atavistic Form to modern candidate genes (MAOA and CDH13) and Raine's prefrontal cortex/amygdala scans, evaluate psychological explanations (Eysenck's PEN Criminal Personality, Kohlberg's Moral Reasoning, cognitive distortions, and Sutherland's Differential Association), and assess custodial sentencing, token economies, restorative justice, and Novaco's CBT Anger Management.

Aggression (Paper 3 Option) examines why humans and animals inflict physical or psychological harm on others. Across this topic, you must integrate four distinct perspectives: biological explanations (limbic system amygdala reactivity, low orbitofrontal serotonin, testosterone and the dual-hormone hypothesis, and the low-activity MAOA-L gene), ethological and evolutionary explanations (Konrad Lorenz's innate releasing mechanisms and fixed action patterns, plus male sexual jealousy and mate retention), social-psychological explanations (Dollard et al.'s Frustration-Aggression Hypothesis, Bandura's SLT, and Zimbardo's Deindividuation), and real-world institutional aggression in prisons (Importation vs Deprivation models) and violent computer games (desensitisation, disinhibition, and cognitive priming).

Cognition and Development (Paper 3 Option) explores how infants and children construct an understanding of the physical and social world around them. You must compare the two giants of developmental psychology: Jean Piaget's constructivist stage theory (schemas, assimilation, accommodation, and his four invariant stages tested via conservation, Three Mountains egocentrism, and class inclusion) and Lev Vygotsky's sociocultural theory (More Knowledgeable Others, the Zone of Proximal Development, and Wood, Bruner & Ross's scaffolding): then evaluate René Baillargeon's Violation of Expectation paradigm on innate physical reasoning and trace social cognition through Selman's Perspective-Taking, Baron-Cohen's Theory of Mind (Sally-Anne and Eyes Task), and Rizzolatti's Mirror Neuron System.