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ERIC Number: EJ022823
Record Type: CIJE
Publication Date: 1970
Pages: N/A
Abstractor: N/A
Reference Count: N/A
ISBN: N/A
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Bias Effect on Validity and Reliability of a Rating Scale
Bitter, James A.
Meas Evaluation Guidance, 3, 2, 70-75, Sum '70
Results suggest that: (1) the Work Adjustment Rating Form (WARF) is subject to rater bias that can significantly affect the scale's predictive validity for individual raters; (2) rater bias did not affect the mean predictive validity and the mean reliability estimate; and (3) rater bias can be minimized by using more than one rater. (Author)
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