An unbiased correction for sampling error in validity generalization studies

Article Abstract:

A correction for variance due to sampling error is part of all the statistical procedures used to study validity generalization. This correction is analogous to estimation of a variance component in a random effects analysis of variance. The correction usually has a large influence on the results of validity generalization analyses. James, Demaree, and Mulaik (1986) recently questioned the correction for sampling error, suggesting that several of the assumptions required for its derivation are questionable. In this article, I provide an alternative correction for sampling error that is shown to be (exactly) unbiased. A comparison of the calculations involved in the computation of the unbiased correction with the calculations involved in the calculation of the usual correction suggests that the 2 corrections will rarely differ substantially. Hence, the usual correction is not seriously biased. (Reprinted by permission of the publisher.)

Statistics, Statistics (Data), Analysis of variance, Statistical hypothesis testing

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Intrinsic motivation as influenced by task interdependence and goal setting

Article Abstract:

The effects of task interdependence and goal setting on intrinsic motivation were examined using a laboratory, resource allocation task. A total of 64 managers worked on two tasks, one involving pooled interdependence, and the other, reciprocal interdependence. Results showed an interaction between task interdependence and goal setting affecting intrinsic motivation. In particular, for the task involving pooled interdependence, assigning specific, difficult goals increased intrinsic motivation above that experienced by subjects who were assigned a general goal. However, for the task involving reciprocal interdependence, assigning specific, difficult goals decreased intrinsic motivation below that experienced by subjects who were assigned a general goal. (Reprinted by permission of the publisher.)

Analysis, Human resource management, Employee motivation, Goal setting, Task analysis

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