Biological approach (AO3)

Strength- point

Uses scientific methods of investigation

Strength- explain

Utilises lab studies, allows control over extraneous variables

Strength- example

Scanning techniques (fMRI’s, PET scan), objectively (unbiased) scan brain

Strength- link

Highly reliable, increases scientific credibility of psych

Strength- counter

Lacks ecological validity, artificial environment, difficult generalise real world

Limitation- point

Fails separate influence nature and nurture

Limitation- explain

All behaviour biological origin, argues ‘nature’ side of debate

Limitation- evidence

Fails consideration behaviours influenced by environment factors e.g. family communication style, social groups

Limitation- link

Reduce validity, doesn’t consider all factors that influence behaviour

Limitation- furthermore

Ignores role of free will, presents biologically deterministic view of behaviour, reducing validity