8 - personality assessment

8 - personality assessment - Objective Tests 23:25...

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Objective Tests 23:25 Objective personality measures: Involve the administration of a standard set of  questions or statements to which the examinee responds using a fixed set of  options Advantages They are economical o Scoring and administration are relatively simple and objective Disadvantages The items of many inventories are often behavioral in nature Inventories often provide a single overall score, which may reflect various  combinations of these behaviors, cognitions, and needs Other difficulties involve the transparent meaning of some inventories’  questions, which can facilitate faking on the part of some patients o The forced-choice approach prevents individuals from qualifying or  elaborating their responses so that some additional information may be  lost or distorted Methods of Construction for Objective Tests Content Validation o Methods involve carefully defining all relevant aspects of the variable you  are attempting to measure Consulting experts before generating items Using judges to assess each potential item’s relevance to the variable  of interest Using psychometric analyses to evaluate each item before you include  it in your measure o Can clinicians assume that every patient interprets a given item in exactly  the same way? Can patients accurately report their own behavior or emotions? Will patients be honest, or will they attempt to place themselves in a  good light? Can clinicians assume that the “experts” can be counted on to define  the essence of the concept they are trying to measure? Empirical Criterion Keying
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o The original Minnesota Multiphase Personality Inventory (MMPI) What is important is that certain patients describe themselves in  certain ways o The important assumption inherent in this approach is that members of a  particular diagnostic group will tend to respond in the same way The utility of an item is thus determined solely by the extent to which it  discriminates among known groups o Foremost is the difficult of interpreting the meaning of a score Factor Analysis o The Guilford Inventories The exploratory factor analytic approach is atheoretical Confirmatory factor analytic approaches are more theory driven,  seeking to confirm a hypothesized factor structure for the test items An increasing number of clinical psychologists are employing  confirmatory factor analysis in the development and evaluation of  objective assessment measures o Strength is the emphasis on an empirical demonstration that items  purporting to measure a variable or dimension of personality are highly  related to one another
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This note was uploaded on 11/16/2010 for the course PSYC 436 taught by Professor Dr.andrealeiman during the Fall '10 term at Maryland.

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8 - personality assessment - Objective Tests 23:25...

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