Procedures in employment psychology

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Monograph

Identifikator:: 173623112X

URN:: urn:nbn:de:zbw-retromon-112923

Document type:: Monograph

Author:: Bingham, Walter Van Dyke http://d-nb.info/gnd/123042593; Freyd, Max

Title:: Procedures in employment psychology

Place of publication:: Chicago & New York

Publisher:: Shaw

Year of publication:: 1926

Scope:: XI, 269 S

Digitisation:: 2020

Collection:: Economics Books

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Document type:: Monograph

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Title:: IV. Choice of workers to be studied

Collection:: Economics Books

EMPLOYMENT PSYCHOLOGY age, or failure—there should be an appropriate proportion of subjects in each group. If the criterion is a continuous variable, such as quantity of output or average school mark, a representative dis- tribution of workers throughout the range of this criterion should be selected. If all the men engaged in the occupa- tion were to be judged by the criterion which has been fixed upon, the resulting distribution would resemble the normal probability distribution; that is, a great many workers would cluster about the average of the group, while fewer and fewer cases would be found as the lower and higher extremes of ability were approached. The problem of the investigator is to discover useful methods of measuring those abilities of the workers which are related to the criterion, so that those who stand high in the mea- surement of the ability will as a general rule also stand high in the criterion, the measure of actual accomplishment on the job. It is important then to obtain test records on workers known to represent various degrees of vocational accomplishment expressed in terms of the criterion which has been adopted. If only successful, competent workers are available at the time, the alternatives are to test also a wide sampling of the population not engaged in that occupation, to see whether significant differences can be found between these highly selected workers and the general run of the work- ing population; or to accumulate over a long period of time test records on new employees as they are hired. The investigator should bear in mind when choosing his subjects, that a wide range of vocational ability will tend to increase the correlations with the tests, and that a large number of cases will tend to increase the reliability of these correlations. It is impossible to make a generalization re- garding the number of cases necessary. Investigators have generally hesitated to publish results where less than 30 cases are used. But it is to be borne in mind that the num- ber of cases required depends on the reliability of both Jo)

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