L3 - Reliability/Validation of Diagnosis/Classification

Question 1

What is reliability in relation to schizophrenia?

Answer 1

Consistency in the diagnosis of schizophrenia between different psychologists and over time

Question 2

What is validity in relation to schizophrenia?

Answer 2

Diagnostic systems assess what they claim to assess

Can be sure condition is schizophrenia

Question 3

Content validity?

Answer 3

Extent to which an assessment covered the range of symptoms of schizophrenia

Question 4

How can reliability be checked?

Answer 4

Inter-rater reliability

Question 5

Is the DSM-V or ICD 10 more reliable and why?

Answer 5

DSM-V

Symptoms more specific and outlined for each category

Question 6

What is inter-rater reliability?

Answer 6

Different psychologists diagnose

Correlation of both diagnoses are scored on a Kappa scale

Question 7

What score on Kappa scale is needed which means high reliability?

Answer 7

+0.7 and above

Question 8

How can we know that reliability and validity in SZ diagnosis is improving over time?

Answer 8

DSM-V/ICD-10 updates every few years

Question 9

Example of ways to asses SZ which helps validity?

Answer 9

Interviews
Checklists
Must cover all SZ symptoms