Contrails
The goal of the Contrails project is to help preserve and disseminate the technical record of 20th century aerospace research, highlighting in particular the research endeavors of the Illinois Tech community.

The Comparative Composite Validities of Batteries of "Short" Versus "Long" Tests

Report Number: HRRC RB 50-1
Author: Leland D. Brokaw
Corporate Author: Human Resources Research Center
Laboratory: Directorate of Personnel Research
Date of Publication: 1950-01
Pages: 30
Contract: Laboratory Research - No Contract
Project: 21-03-012
AD Number: ADF760075

Abstract:
Comprehensive coverage of the factorial area deemed necessary for proper classification of Air Force technical trainees would require a considerable number of tests. If previous standards of test reliability were to be met, the required testing time would be arduously long. Fatigue engendered by a testing period of more than two days might destroy the motivation of the examinees. An additional point against the use of such a long testing period is the number of man hours required in testing and test processing. In an effort to reduce the required testing time, the concepts of test reliability and test validity as affected by test length were examined. As test length is altered, the change in numerical magnitude of test reliability is greater than the change in the validity coefficient. On this basis it was assumed that individual tests in a battery might be significantly shortened with little effect on the composite validity of the battery. This study confirms the desirability of using short tests in the Airman Classification Battery. It indicates the desirability of further analysis and experimentation in the areas of test and battery reliability.

This report has yet to be scanned by Contrails staff

Request scanning of this report

Other options for obtaining this report

Via the Defense Technical Information Center (DTIC):
A record for this report, and possibly a full-image download of the report, exists at DTIC

Via National Technical Information Service:
This report may have been digitized and made freely available for public download, or made publicly available for purchase by the National Technical Information Service through their online database, the National Technical Reports Library

Indications of Public Availability
No digital image of an index entry indicating public availability is currently available
There has been no verification of an indication of public availability from an inside cover statement