A Note on the Calculation of Weights for Maximum Battery Reliability
- Author(s):
- Green, Bert F., Jr.
- Publication Year:
- 1950
- Report Number:
- RB-50-26
- Source:
- ETS Research Bulletin
- Document Type:
- Report
- Page Count:
- 8
- Subject/Key Words:
- Test Batteries, Test Reliability, Weighted Scores
Abstract
Weights may be determined for combining tests so that the composite has maximum reliability, but the calculation of these weights by means of the original equations is cumbersome. It is shown that the desired weighted composite is the first principal axis of a matrix closely related to the intercorrelation matrix. Thus simple and straightforward iterative procedures are available for calculating the weights.
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- http://dx.doi.org/10.1002/j.2333-8504.1950.tb00212.x