Issues and debates in Psychology — AQA A-Level Psychology
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Issues and debates in Psychology explained
Universality is the claim that a finding holds for everyone, everywhere; bias is what breaks it.
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Alpha bias exaggerates the difference between the sexes, usually to women's cost, as in Freud's weaker female superego. Beta bias minimises it: fight-or-flight was mapped on male animals and assumed to fit women, until Taylor's tend-and-befriend work found an oxytocin-driven pattern instead. Androcentrism makes male behaviour the yardstick, so female behaviour reads as deviant. Ethnocentrism does the same across cultures, and Ainsworth's Strange Situation is the standard case of an imposed etic: Van IJzendoorn and Kroonenberg's meta-analysis of 32 studies found 35% avoidant infants in Germany, yet more variation within countries than between them. Cultural relativism answers that behaviour only means something in its own context.
Free will and determinism: hard determinism and soft determinism; biological, environmental and psychic determinism. The scientific emphasis on causal explanations.
Free will says you author your own choices; determinism says every action is caused by something you did not choose. Hard determinism treats free will as an illusion and leaves no room for choice at all. Soft determinism, from William James, keeps conscious choice inside limits the situation sets. The three varieties simply name the cause: biological (genes such as MAOA, neurotransmitters, hormones), environmental (Skinner argued behaviour is nothing but an accumulated history of reinforcement) and psychic (Freud's unconscious childhood conflicts, where even a slip of the tongue has a cause). Science leans determinist because a controlled experiment is built to isolate a cause. The sharpest challenge is Libet's, whose readiness potential appeared in motor cortex before participants reported deciding to move.
The nature-nurture debate: the relative importance of heredity and environment in determining behaviour; the interactionist approach.
Nature means inherited influence, nurture means everything experience does, and the argument is over how the two divide up the differences between people. Psychologists put numbers on it with concordance rates and heritability: intelligence sits near 0.5, which means about half the variation in a population is genetic, not half of any one person's IQ. Schizophrenia concordance runs near 48% for identical twins against 17% for fraternal, so neither side wins outright. The interactionist answer is that the two cannot be separated. Diathesis-stress needs an inherited vulnerability and an environmental trigger, and Tienari's Finnish adoption study found raised risk only where the adoptive family was rated dysfunctional. Epigenetics goes further: Dias and Ressler conditioned mice to fear a scent and saw the fear in pups that had never met it.
Holism and reductionism: levels of explanation in Psychology. Biological reductionism and environmental (stimulus-response) reductionism.
Reductionism explains behaviour by breaking it into its simplest parts, justified by parsimony; holism insists some things exist only in the whole, which is what Gestalt psychologists meant by the whole being more than the sum of its parts. Between the two sit levels of explanation. Obsessive-compulsive disorder can be described socio-culturally as deviating from cleanliness norms, physically as repetitive hand-washing, psychologically as an intrusive thought, physiologically as an overactive worry circuit and neurochemically as low serotonin. Biological reductionism works at the lowest level, which is why drug treatment targets serotonin. Environmental reductionism, the behaviourists' version, breaks learning down into stimulus-response links built by conditioning, as Skinner did with rats in a box.
Idiographic and nomothetic approaches to psychological investigation.
An idiographic approach studies the individual in depth and treats subjective experience as the data. Freud built much of psychosexual theory on one boy, Little Hans, and the memory models rest on case studies of single brain-damaged patients; the methods are case studies, unstructured interviews and thematic analysis. A nomothetic approach studies many people to produce general laws, norms and predictions using standardised measures and statistical testing. Radford and Kirby split those laws into three: classifying people into groups, as diagnostic manuals do; stating principles of behaviour, as conditioning does; and placing people on dimensions, as Eysenck did by factor-analysing questionnaires from hundreds of servicemen. The real distinction is about generalisation, not about numbers.
Social sensitivity in psychological research.
Socially sensitive research involves studies where there are potential social consequences or implications, either directly for the participants or for the group they represent. Sieber and Stanley identified key concerns researchers must address: the broader implications of the findings (which could justify prejudice), how the research might be used to shape public policy, and the validity of the methodology. For example, investigating a potential genetic basis for criminality or intelligence is highly socially sensitive, as findings could be misused to discriminate against specific demographic groups. Researchers must carefully weigh the ethical duty to advance knowledge against the risk of causing societal harm.
Your focus
- Explain alpha bias, beta bias, androcentrism, ethnocentrism and cultural relativism with one example of each.
- Explain which bias a given piece of research shows, using its sample and the claim made from it as the test.
- Discuss universality using Van IJzendoorn and Kroonenberg finding more variation within countries than between them.
Show all 18 objectives
- Outline hard and soft determinism and the biological, environmental and psychic varieties with a named source for each.
- Apply the right type of determinism to a described behaviour, from MAOA through reinforcement history to Freud.
- Discuss Libet's readiness potential and the counter that it may signal readiness to act rather than the decision.
- Explain heritability as the share of population variation that is genetic, not half of any one person's IQ.
- Apply diathesis-stress to a described case by naming the inherited vulnerability and the environmental trigger.
- Discuss whether the question can be answered as posed, given that inherited temperament shapes the environment received.
- Outline the levels of explanation from socio-cultural down to neurochemical using one behaviour throughout.
- Explain the same disorder at five levels, as a deviation from social norms, as a visible act, as a thought, as a neural circuit and as a neurotransmitter.
- Discuss why reductionism is not automatically a criticism, given that drug treatments came out of the lowest level.
- Describe the idiographic and nomothetic approaches by their methods and by what each one generalises to.
- Explain Radford and Kirby's three kinds of law with an example of classifying, of principles and of dimensions.
- Discuss whether the two approaches are genuinely opposed, given that most approaches in psychology use both.
- Define the concept of social sensitivity in psychological research.
- Identify the potential societal implications and public policy uses of socially sensitive findings.
- Evaluate the ethical arguments for and against conducting socially sensitive research.
Issues and debates in Psychology exam tips
Marking Points
- Universality: the claim that a psychological finding applies to all people, in all cultures and at all times, regardless of gender.
- Alpha bias: differences between men and women exaggerated, usually devaluing women (Freud's account of the female superego; sociobiological accounts of male promiscuity).
- Beta bias: real differences ignored or minimised, so findings from male samples are generalised to women (the fight-or-flight research programme).
- Androcentrism: male behaviour taken as the norm, so female behaviour is judged abnormal or deficient, as in the medicalising of premenstrual syndrome.
- Ethnocentrism: judging other cultures by the standards of one's own; an imposed etic exports a home-grown measure and reads the difference as a deficiency.
- Cultural relativism and the emic-etic distinction: behaviour can only be interpreted within the culture that produced it.
- AO3: Van IJzendoorn and Kroonenberg found greater variation within countries than between them, so 'culture' is too blunt a unit to carry the explanation.
- AO3: bias is a property of the researcher as well as the sample, which is why reflexivity and the use of indigenous researchers are offered as remedies.
- Free will: the individual is self-determining and can reject internal and external pressures, the position the humanistic approach takes.
- Hard determinism: every behaviour has a cause that could in principle be identified, so free will is an illusion.
- Soft determinism: causes constrain the options but conscious reasoning still selects among them (James; the cognitive approach).
- Biological determinism: genetic, neurochemical and hormonal causes, such as dopamine in schizophrenia or the MAOA gene in aggression.
- Environmental determinism: Skinner's claim that behaviour is the cumulative product of reinforcement history rather than choice.
- Psychic determinism: Freud's unconscious conflicts formed in early childhood, with parapraxes treated as caused rather than accidental.
- The scientific emphasis on causal explanation: the controlled experiment manipulates one variable to establish cause and effect, which assumes determinism.
- AO3: Libet's readiness potential precedes the reported decision, but the counter is that it may signal readiness to act rather than the decision itself.
- AO3: hard determinism is close to unfalsifiable, and both the legal system and locus-of-control research assume people are responsible agents.
- Nature: behaviour is inherited and largely present at birth, the nativist position associated with Descartes.
- Nurture: behaviour is acquired from the environment, the empiricist position associated with Locke's blank slate.
- Environment defined broadly, prenatal as well as postnatal, from maternal diet and stress through to peer group and culture.
- Heritability: a coefficient running from zero to one that describes how much of the variation in a population is genetic, near 0.5 for intelligence.
- Twin and adoption evidence: concordance is higher for identical than for fraternal twins but never complete, so neither influence is sufficient alone.
- The interactionist approach: diathesis-stress, an inherited vulnerability expressed only when an environmental trigger arrives (Tienari's adoption data).
- Epigenetics: experience leaves chemical marks that switch genes on and off, and those marks can carry into the next generation (Dias and Ressler).
- AO3: the question may be unanswerable as posed, because genes and environment correlate; an inherited temperament shapes the environment a child then receives.
- AO3: implications are socially sensitive, since strong nature positions have been used to argue for eugenics and strong nurture positions for behaviour shaping.
- Holism: behaviour must be studied as a whole system because analysing it into parts destroys the thing being explained (Gestalt psychology; the humanistic approach).
- Reductionism: analysing behaviour into its constituent components, defended by parsimony, the preference for the simplest explanation that works.
- Levels of explanation: socio-cultural, psychological, physical, physiological and neurochemical accounts of the same behaviour, ordered from most to least holistic.
- A worked example is expected: obsessive-compulsive disorder as deviating from social norms, as hand-washing, as an intrusive thought, as an overactive neural circuit, as low serotonin.
- Biological reductionism: behaviour explained by genes, neurochemistry and brain structure, the level at which drug therapies act.
- Environmental or stimulus-response reductionism: behaviourists reduce complex learning to chains of association formed by classical and operant conditioning.
- AO3: reductionist accounts operationalise cleanly and support controlled experiments, which is where the scientific credibility comes from.
- AO3: they can also strip out meaning, because describing the neurochemistry of a behaviour does not explain what the behaviour was for.
- AO3: holism resists testing and offers no way to choose between competing causes, which is why humanistic psychology has produced little hard evidence.
- Idiographic: the individual is studied as unique, with no attempt to measure them against a general standard.
- Idiographic methods: case study, unstructured interview and qualitative or thematic analysis, producing rich subjective data.
- Idiographic examples: Freud's Little Hans, single-patient studies of amnesia, and the humanistic focus on personal experience.
- Nomothetic: large samples are studied to establish general laws, norms and predictions through standardised quantitative measurement.
- Radford and Kirby's three kinds of law: classifying people into groups, establishing principles of behaviour, and placing people on dimensions.
- Nomothetic examples: diagnostic classification, the laws of conditioning, and Eysenck's personality dimensions derived by factor analysis.
- AO3: a single case can generate hypotheses and can falsify a general law outright, which is why the idiographic approach is not unscientific.
- AO3: it also rests on subjective interpretation and tiny samples, with no comparison baseline, so findings cannot be generalised.
- AO3: the nomothetic approach is replicable and predictive but loses the person, since a group probability describes nobody in particular; most approaches use both, so the dichotomy may be false.
- Define socially sensitive research as studies with potential consequences for participants or the broader groups they represent.
- Identify implications, such as the risk of findings giving scientific credibility to prejudice or discrimination.
- Explain the role of public policy, noting that governments may use socially sensitive findings to shape laws or allocate resources.
- Discuss the importance of validity, as poorly designed socially sensitive research can cause significant unwarranted harm if published.
Examiner Tips
- 💡A sixteen-mark essay here requires a balance of skills. Avoid assuming a blanket split of six description and ten evaluation marks; if there is a stem, marks are allocated to application (AO2), so do not neglect applying your knowledge to the scenario alongside your AO3 evaluation.
- 💡Give a worked example for every term. 'Androcentrism' on its own is worth nothing without the premenstrual syndrome or fight-or-flight illustration.
- 💡When there is a stem, quote the researcher's own words back and label the bias those words demonstrate before you evaluate.
- 💡Scenario questions plant one kind of cause per character, so identify which determinism each detail points to before writing a word.
- 💡Keep the implications paragraph concrete: responsibility in law, and the raised depression risk found in people with an external locus of control.
- 💡Do not spend half the essay on free will. The specification names five determinist positions (hard, soft, biological, environmental and psychic) and a marker is looking for you to distinguish them.
- 💡Pick one behaviour and track it through the whole answer; a schizophrenia thread supplies concordance figures and diathesis-stress in a single move.
- 💡Top-band answers say why the debate is badly posed, not merely that both sides contribute something.
- 💡In a stem question, quote the family detail first and label it as a shared gene or a shared environment before you explain anything.
- 💡Name your behaviour in the first sentence and use the same one at every level; this structure helps to clearly demonstrate your knowledge of the different levels of explanation.
- 💡Evaluate by asking what each level can and cannot predict, rather than asserting that one is better than another.
- 💡If asked to discuss with reference to a named approach, evaluate the level that approach works at, not reductionism in the abstract.
- 💡Classification questions are common: check the sample size and whether the aim was a general law before you commit to an answer.
- 💡A comparison scores best when each paragraph holds both approaches against one criterion, rather than dealing with them one after the other.
- 💡Close on the complementary-not-competing line, backed by a named approach that demonstrably uses both.
- 💡Use Sieber and Stanley's framework (implications, public policy, validity) to structure extended answers on this topic.
- 💡Always link the concept of social sensitivity back to the specific scenario or study provided in the stimulus material.
- 💡Evaluate the topic by discussing the balance between the potential benefits of the research (e.g., reducing prejudice) and the risks of misuse.
Common Mistakes
- Swapping alpha and beta bias round. Alpha exaggerates the difference, beta erases it; the quick check is whether the theory says the sexes are very different or says the difference is not there.
- Treating beta bias as harmless because it 'treats everyone the same'. It does damage precisely because identical treatment of different needs hides female experience.
- Calling a study 'culturally biased' with no mechanism named. Say which it is: ethnocentrism, an imposed etic, or simply an unrepresentative sample.
- Confusing cultural relativism with the claim that nothing is universal. Relativism is about interpreting behaviour in context, not denying that anything is shared.
- Writing that determinism means behaviour can be predicted with certainty. Hard determinism claims causes exist, not that psychologists have found them.
- Leaving soft determinism as 'a bit of both'. State the claim: causes fix the range of options, conscious thought picks within that range.
- Using Libet as proof that free will does not exist and stopping there; evidence with no counter-argument attached is description, not evaluation.
- Naming Freud for psychic determinism and then describing genes. Psychic determinism is unconscious conflict, not biology.
- Reading a heritability coefficient as a fact about an individual. Near 0.5 says half the variation in a group is genetic; it says nothing about one person.
- Claiming twin studies prove nature. Identical twins share an upbringing as well as their DNA, and concordance is never complete.
- Leaving the interactionist approach as 'both matter'. Credit comes from a named mechanism: diathesis-stress, gene-environment correlation or epigenetics.
- Splitting one person's behaviour into percentages of nature and nurture, which is not what any of the evidence measures.
- Using 'reductionist' as an insult rather than a description. Reduction is often exactly why a line of research produced usable treatment.
- Listing the levels of explanation without running one behaviour through them, which forfeits the example credit the question is built around.
- Confusing environmental reductionism with the nurture side of nature-nurture. It is a claim about the size of the unit of analysis, not about where behaviour originates.
- Calling the biological approach holistic because it refers to the whole brain; the level of explanation is what decides this, not the size of the organ.
- Treating idiographic as a synonym for qualitative and nomothetic for quantitative. The method usually follows, but the distinction is about whether a general law is the goal.
- Asserting that case studies cannot be scientific. One contrary case can refute a general law, which is about as scientific as evidence gets.
- Assigning a whole approach to one side. The biological approach uses idiographic case studies of patients alongside nomothetic averages.
- Describing the approaches without naming a single method, so 'studies individuals' sits there with no case study or interview attached.
- Confusing social sensitivity with general ethical issues like informed consent. Correction: Focus specifically on the broader societal impact and consequences for groups, rather than just individual participant ethics.
- Arguing that socially sensitive research should never be conducted. Correction: Acknowledge that avoiding such research is a dereliction of duty; instead, researchers must manage the risks carefully.
- Failing to provide a concrete example. Correction: Always anchor explanations of social sensitivity to specific studies, such as Burt's research on intelligence or Bowlby's maternal deprivation hypothesis.