Diagnosis and classification of depression
- Created by: bethdobson6
- Created on: 13-06-16 15:54
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- Diagnosis and classification of depression
- Validity
- The extent that a diagnosis represents something that is real and distinct from other disorders and the extent that a classification such as DSM measures what it claims to measure.
- Content validity, concurrent validity, co-morbidity
- Gaignoses made by GP''s are made against a background of previous patient knowledge and could be biased.
- Sub-types may not be valid because McCullough found few differences on a range of clinical, psychological and treatment response
- The odds of having suicidal thoughts was 5 times higher in patients with MDD alone compared to patients with no psychiatric disorder.
- Relaibility
- Consistency between different sets of results.
- Test-retest, inter-rater reliability
- Keller
- Inter-rater reliability was 'fair-to-good' and test-retest reliability was only 'fair'.
- May lack reliability because for MDD to be diagnosed 5 symptoms must be present and a one item disagreement is enough to make a difference between MDD and a less serious illness.
- DSM V & ICD
- Distinguishes between MDD and Manic Depression (bi-polar)
- 5 symptoms must be present including depressed mood of the day, every day
- Difficulty in sleeping, shift in activity, loss of interest & pleasure in activities, poor appetite and weight change, recurrent thoughts of death or suicide
- Culture may impact the diagnosis of depression. White people are more likely to seek help.
- Validity
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