Discuss issues of reliability and validity associated

hold forth issues of reliability and rigorousness associated witticismh the classification and diagnosing of phobic disorders. ( 8+16) A phobic neurosis Is an irrational fear which Interferes with daily life. For a phobia to be diagnosed It must pick up the criterion set by the diagnostic and statistical manual of mental disorders. reliability and validity ar twain outstanding factors when considering classification of mental disorders they must be present for an accurate classification to be made. Rellablllty and valldlty argon linked be political campaign a diagnosing t chapeau Is not accepted Is not valid.Rellablllty refers to the consistency, such as questionnaires or scales to assess how tremendous a person Is about something. reliability of questionnaires or scales flush toilet be thrifty In terms of whether the test items are consistent, which Is called test-retest reliability. Another way of assessing reliability is whether two independent assessors give sim ilar scores, which is called interrater reliability. mental testing re-test refers to how consistent results are when the specific hearing/questionnaire is repeated.Brown et al (2001) conducted study which involved interviewing 1400 patients twice, the second gear interview occurred within 2 weeks of the front one. The interviews were based on criteria for heterogeneous disorders in DSM -IV. Brown rig that reliability in inter-rater agreement was excellent for specific phobia, sociable phobia and panic disorder wit agoraphobia. Reliability could have been higher for the various phobias than for other mental disorders because all phobias are associated with clear behavioural symptoms (avoidance of feared stimulus) which makes them easy to diagnose.This suggests hat diagnosis of phobic disorders according to the DSM is sure and largely because phobic disorders are easy to diagnose . Brown et al also examined factors associated with disagreement between 2 interviewers. He foun d that inter-rater unreliability was caused by interviewers disagreeing whether the fear was causing sufficient discommode/interference to a persons life to case a phobia diagnosis. It was also caused by patients reports of symptoms changing between interviews which could have been genuine.Another cause of difference between the two interviewers as that they made errors, as the same symptoms were presented to interviewers thus far different diagnosis devoted 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 hunky-dory excellent diagnostic agreement In a test- retest study using MDC.Valldlty Is the period to which a classification governance of rules easures what It claims to measure. We can assess the valldlty associated with phobic disorders by aspect at depicted object valldlty. Content validity means how much the diagnostic system addresses all of the symptoms In a given disorder. Seml structured 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 item-by-item receiving a diagnosis e. g. social phobia are any different to the plurality who have not been given the diagnosis in predictable way .