2. Diagnosis And Classification Of Schizophrenia AO3

Question 1

Name a limitations for the diagnosis of schizophrenia

Answer 1

Low reliability - Cheniaux

Question 2

What did Cheniaux do?

Answer 2

Had two psychiatrists independently diagnose 100 patients using both DSM and ICD criteria

Question 3

What did Cheniaux find

Answer 3

Inter-rater reliability was poor:

• One psychiatrist diagnosed 26 with SZ using DSM & 40 using ICD
• The other diagnosed 13 with DSM & 24 with ICD

Question 4

Why does Cheniaux’s research contradict the diagnosis of schizophrenia

Answer 4

This inconsistency between mental health professionals and the different classification systems is a limitation of diagnosis

Question 5

Name two limitations of diagnosis and classification of SZ

Answer 5

• diagnosis has low reliability

- co-morbidity

Question 6

Outline co-morbidity as an issue for SZ

Answer 6

This is when two or more conditions occur together - can call into question whether they are actually a single condition if they occur together a large amount of time

Question 7

What did research find about co-morbidity

Answer 7

Researcher concluded that around half of patients with a diagnosis of SZ also have diagnosis of depression or substance abuse