reliability and validity of schizophrenia

Question 1

what is reliability?

Answer 1

reliability refers to how consistent the diagnosis of schizophrenia is meaning is has to have inter-rater reliability as if one clinician is diagnosing the same patient they should both agree to the diagnosis

Question 2

how to issues occur with reliability?

Answer 2

issues with reliability occur when clinicians disagree with the diagnosis this may happen if the clinician do not use the same diagnosis tools

Question 3

what is validity?

Answer 3

validity refers to measuring what you intend to measure meaning how accurate the clinicians diagnose the patient

Question 4

how do issues occur in validity?

Answer 4

issues with validity occur if a clinician given a diagnosis of a disorder that doesn’t actually fit the symptom they have

Question 5

what is co-morbidity?

Answer 5

co-morbidity is when one patient may present symptoms from more than one mental illness

Question 6

how do issues occur in co-morbidity?

Answer 6

patients with schizophrenia are at an increased risk of developing depression therefore diagnosing a co-morbid patient is trying to find the correct diagnosis e.g does the patient have depression or is that part of their schizophrenia

Question 7

what is symptom overlap?

Answer 7

symptom overlap is when two or more illnesses present some of same symptoms e.g avolition overlaps with symptoms of depression such as lack of motivation

Question 8

what issues occur in symptom overlap?

Answer 8

the DSM and ICD use different criteria to classify the same symptoms meaning the DSM might produce a diagnosis of schizophrenia whereas the ICD diagnosis might be bi-polar disorder based on the same set of symptoms