The Biological Model

Question 1

the biological approach assumes that

Answer 1

psychological disorders are physical illnesses with physical causes

Question 2

in principle, mental illnesses are

Answer 2

no different to physical illnesses except they have major psychological symptoms

Question 3

biological explanations for OCD

Answer 3

genetic factors
biochemical factors
neurological factors

Question 4

some researchers think that

Answer 4

genetics plays a part in OCD

Question 5

studies have looked at

Answer 5

OCD rates among people with a relative who has OCD to see if having a relative significantly increases your chances of developing it

Question 6

Evidence For: Billet et al date

Answer 6

1998

Question 7

Evidence For: Billet et al conducted a

Answer 7

meta analysis of twin studies

Question 8

Evidence For: Billet et al found that in identical twins

Answer 8

if one twin had OCD then 68% of the time both twins had it

Question 9

Evidence For: Billet et al found that in non-identical twins

Answer 9

if one twin had OCD then 31% of the time both twins had it

Question 10

Evidence For: Pauls et al date

Answer 10

2005

Question 11

Evidence For: Pauls et al found that

Answer 11

10% of people had an immediate relative with OCD

Question 12

Evidence Against: no study has found

Answer 12

a 100% concordance rate so genetics cant be the full cause of OCD

Question 13

Evidence Against: it is possible that children

Answer 13

imitate the obsessive and compulsive behavior of their relatives

Question 14

Evidence Against: concordance rates don’t

Answer 14

prove that OCD is caused by genetics