heston

Question 1

what did hestons study show

Answer 1

demonstrated that biological children of schizophrenia parents were just as likely to develop schizophrenia reared by biological or adopted parents
showed that it is genetic

Question 2

what was the aim

Answer 2

to see if schizophrenia was a genetic predisposition

Question 3

what was the method of heston

Answer 3

participants = 50 adoptees who biological mothers had been diagnosed with S1 compared to control group of 37 adoptees who’s mothers had not been diagnosed with S1
compared psycho-social adjustment and school, police and hospital records
had personal interviews - 3 psychiatrists independently rated

Question 4

results of heston

Answer 4

incidence of schizophrenia in general population is 1%

those who had a family history of S1 10% were later diagnosed

Question 5

conclusion of heston

Answer 5

research shows that S1 has a strong genetic component

Question 6

strengths of heston

Answer 6

• rich qualitative data as they completed interviews which would have open ended questions and takes emotions into account
• naturally occurring independent variable which means they didn’t have to tweak the experiment and already had one so makes it more realistic - whether the mother had S1 or not

Question 7

weaknesses of heston

Answer 7

• unequal sample size 47:50 which makes it harder to directly compare results
• no cause and effect every environment was different
• low control over variables as had different environment and genetic factors affecting them, some may have been on medication
• cant be generalised as it is a small sample and can only be applied to people with S1 which is a specific area