Paul Kline's A Handbook of Test Construction: Introduction to PDF

By Paul Kline

ISBN-10: 1138905119

ISBN-13: 9781138905115

Psychological exams offer trustworthy and target criteria through which contributors should be evaluated in schooling and employment. as a result exact decisions needs to depend upon the reliability and caliber of the checks themselves. initially released in 1986, this instruction manual via an the world over said professional supplied an introductory and finished therapy of the enterprise of creating sturdy tests.

Paul Kline indicates the way to build a try after which to envision that it's operating good. masking such a lot types of exams, together with desktop offered assessments of the time, Rasch scaling and adapted trying out, this name bargains: a transparent creation to this advanced box; a word list of professional phrases; a proof of the target of reliability; step by step suggestions during the statistical systems; an outline of the strategies utilized in developing and standardizing exams; directions with examples for writing the attempt goods; machine courses for plenty of of the techniques.

Although the pc trying out will necessarily have moved on, scholars on classes in occupational, academic and scientific psychology, in addition to in mental checking out itself, may nonetheless locate this a worthwhile resource of knowledge, information and transparent explanation.

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Additional resources for A Handbook of Test Construction: Introduction to Psychometric Design

Sample text

Face validity The more a test appears to measure what it claims to measure, the higher is its face validity. Facility-value In item analysis, this refers to the proportion giving the correct response or putting the keyed response in a personality inventory. Factors (factor analysis) Factors can be thought of as dimensions, constructs or vectors which can mathematically account for the covariance between variables. Factor analysis This is a statistical technique which uncovers the determinants of correlations and thus helps to account for them.

If it is answered correctly, a more difficult one is presented; if wrong, an easier one. By such means a subject’s precise level on a set of items can be accurately ascertained with only a relatively few items presented. All this involves computer presentation of items with Rasch or other scaled-difficulty indices stored in the memory and a computer program which presents items depending upon the response and item difficulties. Most tailored tests use items calibrated from item-characteristic curves so that accurate estimates can be drawn from subsets of items.

This is obviously the case, for if two variables were perfectly correlated, one would be providing no new information. Thus maximum validity, in Cattell’s argument, is obtained where test items do not all correlate with each other, but where each correlates positively with the criterion. Such a test would have only low internal-consistency reliability. In my view, Cattell is theoretically correct. However, to my knowledge no test constructor has managed to write items that, while correlating with the criterion, do not correlate with each other.

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A Handbook of Test Construction: Introduction to Psychometric Design by Paul Kline

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