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

Structure type:: Chapter

Title:: VIII. Psychological tests (concluded)

Collection:: Economics Books

EMPLOYMENT PSYCHOLOGY illustrates several principles which it is well to bear in mind in devising any performance test (46). The instrument consists of a battery of four skeleton guns, with training or pointing gear, a mechanism for giving the targets a series of harmonic wave motions of great variety and complexity, a recording device, that shows each movement of the target and the corresponding movements of the gun as the pointer or trainer tries to follow it, and a firing device, that not only indicates the accuracy of the pointing but also the effect of the effort to fire on the pointing coordinations. Points to be noted regarding this test are: 1. The task is closely analogous with the job. >. The instrument is self-recording, the performance being subject to later inspection and analysis. 3. The apparatus is useful for training. With it the man can train himself and does not require the constant atten- dance of an officer or experienced operator during the prac- tice periods. It also releases expensive and limited equip- ment for active service. ORDER OF ITEMS When the items of a test are of practically the same diffi- culty, their order may be determined by chance, but the in- vestigator should assure himself by preliminary trial that the items really are approximately equal in difficulty. The preliminary order may be based on the judgment of the investigator. The relative difficulty of the items may then be determined by finding the percentage of a group that solves each one correctly, or by finding for each item the average time required to do it. If some items are harder and others easier, they ought to be arranged in order of difficulty. When the easiest items are placed at the beginning of a test, the subject quickly becomes adapted to the test requirements and a better dis- tribution of scores is obtained. A number of hard problems at the beginning of the test discourages some persons to TII0O

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