The effects of continuous work upon output and feelings.

Abstract

In the course of an investigation of the effects of continuous physical and mental work 1 a series of reports was obtained from the subjects doing mental work in regard to their feelings. The relation between changes m output of work and changes in the feehngs will be discussed in this paper.Four forms of mental work 2 were used, each continued for approximately five and one-half hours, or until the subject refused to work longer. They were:1. Continuous addition which consists in adding to a twoplace number first 16, then 17, then 18, then 19, then 16, etc. At the end of each 30 seconds a new two-place number is given The score is in terms of number of additions done correctly per 30-second period. At the end of each half hour of work the subject reported how he felt, in terms of a scale which will be described later.2. Sentence Completion A series of 39 sets of Sentence Completion material taken from the Thorndike Entrance Examination for High School Graduates, divided into groups of 24 or 36 according to difficulty. Twenty-one minutes were allowed for work on each group, the score being in terms of amount of work done correctly m that time. At the end of each 21 minutes the subject reported how he felt.3. Judging Compositions. A series of 130 compositions 1 This is an investigation made possible by the Ernest Kempton Adams Research Fellowship granted for the year 1922.2 The conditions of the experiment and description of material together with tables of original data have been published in the American

Psychometric properties of the persian version of the “Multidimensional Assessment of Fatigue Scale”

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A Study of Fatigue Effects From the New Sat®

“…He found no performance difference between the groups. Poffenberger (1928) studied subjects (age unstated) who worked continuously for 5½ hours on one of four kinds of tasks (addition, sentence completion, intelligence test items, or judging compositions). Feelings consistently declined, but only arithmetic performance declined; performance increased over the time on the intelligence test tasks.…”

The Development and Validation of a Checklist for Measuring Subjective Fatigue

“…The possibility of establishing a subjective measure of fatigue has seemed unpromising because of the difficulty of treating affective responses in a simple, quantitative manner. Although several studies employing measures of subjective fatigue have been reported in the literature (8)(9)(10)(11)(12)(13)(14) it has only been within the last few years that any study has been designed primarily to develop a fatigue scale. Frazier (15) attempted to scale 70 items by Guttman's method (16) but was unsuccessful.…”