Sunday, January 13, 2019
Discuss issues of reliability and validity associated
Discuss issues of reliableness and hardness associated with the compartmentalisation and diagnosis of neurotic disorders. ( 8+16) A phobic neurosis Is an reasonless caution which Interferes with daily life. For a phobic neurosis to be diagnosed It must meet the bar set by the diagnostic and statistical manual of mental disorders. dependableness and severity ar two Important factors when considering classification of mental disorders they must be indue for an accurate classification to be do. Rellablllty and v everydlty be linked because a diagnosis that Is non reliable Is not valid.Rellablllty refers to the consistency, such as questionnaires or scales to evaluate how fearful a person Is about something. Reliability of questionnaires or scales can be measured In terms of whether the test items are un antitheticiated, which Is called test-retest reliability. an early(a)(prenominal) way of assessing reliability is whether two self-employed person assessors give simil ar scores, which is called interrater reliability. Test re-test refers to how consistent results are when the specific query/questionnaire is repeated. brownness et al (2001) conducted study which involved interviewing 1400 patients twice, the second interview occurred within 2 weeks of the first one. The interviews were found on criteria for various disorders in DSM -IV. Brown found that reliability in inter-rater harmony was clear for specific phobia, social phobia and panic disorder wit agoraphobia. Reliability could rent been higher for the various phobias than for other mental disorders because all phobias are associated with bear behavioural symptoms (avoidance of feared stimulus) which makes them well-to-do to diagnose.This suggests hat diagnosis of phobic disorders according to the DSM is reliable all the same largely because phobic disorders are easy to diagnose . Brown et al to a fault examined factors associated with disagreement between 2 interviewers. He found t hat inter-rater unreliability was caused by interviewers disagreeing whether the fear was causing sufficient distress/ contraceptive to a persons life to warrant a phobia diagnosis. It was also caused by patients reports of symptoms changing between interviews which could have been genuine.Another cause of going away between the two interviewers as that they made errors, as the same symptoms were presented to interviewers however different diagnosis given however this could be because they missed Important information. Skyre et al (1991) also found high Inter-rater reliability, 3 cllnlclans assessed 54 patients using SCID-I. He found +72 Inter-rater agreement which shows that phobia diagnosis Is reliable. diagnosis of phobic disorders ld also reliable as Hiller et al (1990) found satisfactory excellent diagnostic agreement In a test- retest study using MDC.Valldlty Is the extent to which a classification system easures what It claims to measure. We can assess the valldlty assoc iated with phobic disorders by disembodied spiriting at content valldlty. Content validity way of life how much the diagnostic system addresses all of the symptoms In a given disorder. Seml merged interviews have high content validity because they were made to the classification system is vaild is to look at criterion validity. This looks into if individual receiving a diagnosis e. g. social phobia are any different to the people who have not been given the diagnosis in predictable way .