Download A Handbook of Test Construction: Introduction to by Paul Kline PDF

By Paul Kline

Psychological assessments supply trustworthy and goal criteria through which contributors might be evaluated in schooling and employment. for this reason actual decisions needs to depend upon the reliability and caliber of the assessments themselves. initially released in 1986, this instruction manual through an across the world said specialist supplied an introductory and accomplished therapy of the enterprise of making stable tests.

Paul Kline indicates find out how to build a try after which to envision that it truly is operating good. masking such a lot types of exams, together with machine offered assessments of the time, Rasch scaling and adapted trying out, this name deals: a transparent advent to this advanced box; a word list of expert phrases; a proof of the target of reliability; step by step information during the statistical strategies; an outline of the thoughts utilized in developing and standardizing exams; instructions with examples for writing the try goods; computing device courses for lots 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 trying out itself, may nonetheless locate this a necessary resource of knowledge, information and transparent explanation.

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Extra info for A Handbook of Test Construction: Introduction to Psychometric Design

Sample text

The response model which gives the probability of the score xvk then takes the form: It is clear that the greater the measure Tv, the greater the probability that subject v will have a score of 1 for his response, and analogously, the lower the facility ak of item k, the greater the probability that a subject will also have a score of 1 for his response. It is also clear that the subject and item parameters are considered unidimensional. If the responses of subjects to a set of items conform to the model, the evidence is that the items provide a unidimensional scale, or in traditional terminology, that the items are internally consistent or homogeneous.

It is assumed that the responses are the result of subjects projecting their own inner feelings and conflicts into their descriptions, hence the name. Q analysis A factor analysis in which people, rather than tests or measures, are the variables. Rank-order correlation (Spearman’s rho) This is the coefficient where the two variables are ranked. Rasch scaling An item-scaling method developed by Rasch which assumes that the probability of a correct response is determined by two parameters: the extent to which the item elicits the latent trait and the position of the subject on this trait.

Before this can be done, however, it will be necessary to discuss and define all those terms which must be thoroughly understood if tests are not only to be properly constructed but properly used. However, there is, as it were, a prior reason for requiring psychological tests to possess these characteristics. This is to improve the precision and accuracy of measurement. These qualities are themselves desirable because such measurement is a sine qua non of science. In the natural sciences progress has depended upon the development of good measures and, in my view, psychology is no exception to this rule.

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