Approaches Flashcards
biological approach key assumption 1
behaviour and thought processes have an innate biological basis
biological approach key assumption 2
all human behaviour is due to our genetic make-up, brain structures or chemical processes
biological approach key assumption 3
human genes have evolved to adapt behaviour to the environment
define genotype
genetic make up
define phenotype
observed/expressed traits caused by genotype and/or environment
define concordance rate
the probability that two people with shared genes will develop the same disorder
how do twin studies show that a trait has a biological basis
greater chance of developing same disorder with more shared genes (monozygotic)
how do twin studies show that a trait has a environmental basis
monozygotic twins share 100% of genes but there is not 100% concordance, differences must be due to other factors
how do family studies show that a trait has a biological basis
if a trait is present in all generations, there is a likelihood that the trait is genetic
how do family studies show that a trait has a environmental basis
if trait didn’t occur in every generation it could be due to environmental factors
how do adoption studies show that a trait has a biological basis
if a trait is present in the biological parent but not the adoptive and then in the child, it must be genetic
how do adoption studies show that a trait has a environmental basis
if the adoptive parent demonstrates a trait that is present in the child, it is likely learnt
issues with twin studies
never truly comprehend if the difference is biological or environment, monozygotic twins share 100% of genes but also a similar environment
issues with family studies
social learning theory states we learn by imitation of a role model, culture will also affect who raises a child
issues with adoption studies
results can be affected by when the child was adopted (confounding variable)
strength of biological approach
objective, scientific study, high validity as results are observable
weakness of biological approach (1)
implications may be dangerous, eugenics and gene manipulation may have negative impacts if taken too far
weakness of biological approach (2)
difficult to fully separate nature and nurture, we cannot be sure that anything is only down to genes
psychodynamic approach key assumption 1
unconscious processes of which we are unaware of determine our behaviour
psychodynamic approach key assumption 2
there are 3 parts to the personality- id, ego, superego
psychodynamic approach key assumption 3
childhood experiences determine adult personality
describe the id
pleasure principle, selfish, present from birth
describe the superego
morality principle, develops around age 5, identify with same sex parent
describe the ego
reality principle, decision maker, develops age 2-3