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Chapter 4

chapter 4

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Konstantine Zakzanis

PSYB32 Chapter 4 - Clinical Assessment Procedure Reliability - consistency of measurement interrater reliability: degree to which two independent judges or observes agree test-retest reliability: measures extent to which people being observed twice or tested twice with same test score the same alternative-form reliability: two forms of a test instead of same test used for people may remember answers if it was the same test and see to extent in which people score on two forms of test and if the scores are consistent internal consistency reliability: assesses whether items on test are related to each other [correlation is measured on how closely related variables are, higher correlation, higher reliability] Validity- whether measure fulfills its intended purpose [validity is related to reliability, unreliable measures[inconsistent results] have low validity] content validity: whether measure samples the domain of interest criterion validity: determine whether measure is associated with another measure [also called concurrent validity when two variables are measured at the same time] ---> [to predict other variables would measure in the future known as predictive validity] construct validity: interpretation of a test, measure of a characteristic eg. anxiousness or distorted cognition; important for theory testing; ex. anxiety proneness Clinical interview interviewer uses language as a principal means of finding out about the client attention the interview gives to the how the respondent answers or which he does not respond to if person not upset about something they are talking about it may not be important but if the person shoes emotion distress or ignoring of the topic then taken into consideration eg. emotions a person displays when talking about a situation the paradigm an interviewer uses will affect what information will be found, how it will be found, and how it will be interpreted for example a psychoanalytic clinician will inquire about clients history, dont think client knows why he or she is coming to therapy, behavior clinician focuss on environmental conditions related to changes in the persons behavior and appreciate individuals distress find information for only what they are looking for clinicians emphasize the things to get the patient to bring them out in the open, encourage them to elaborate, humanist may use specific empathy techniques interviews are important to the study of abnormal, clinicians however overlook factors that they may be displaying and influencing clients responses reliability low, inconsistent results in interrator reliability, and other reliabilities Structured Interview questions are set out in a prescribed fashion for the interviewer eg. structured clinical interview diagnosis [SCID] for Axis 1 of DSM SCID is a branching interview that is clients response to one question determines the next question asked contains details on when to probe and so forth, and when to go onto other questions on other diagnosis most symptoms put on a three point scale with instructions on how to translate the rating into diagnoses improvement in reliability interrater reliability for structured interviews are good structured interviews developed for personality disorders, and anxiety disorders Psychological Tests standardized procedures designed to measure a persons performance on a particular task or to assess their personality if diagnostic interviews dont give all answers psychological test may give them example patient with schizophrenia may not opening tell a clinical they have hallucination but may report it on the psychological test when data is collected statistical norms can be established process known as standardization responses of a person then compared to statistical norms www.notesolution.com
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