Ordinary People: Using a Popular Film in Group Therapy

A time-limited, topic-oriented counseling group using the popular film Ordinary People prepared adolescents in residential treatment for reentry into their families and communities.     

A LONGITUDINAL STUDY OF UPWARD FEEDBACK

This study followed 92 managers during four administrations of an upward feedback program over 2.5 years. Managers' whose initial level of performance (defined as the average rating from subordinates) was low improved between Administrations 1 and 2, and sustained this improvement 2 years later. Most of the performance improvement occurred between the first and second administrations of the program. The observed performance improvement could not be attributed solely to regression to the mean and was unrelated to the number of times, or when, the managers received feedback. Our results suggest that the continued administration of an upward feedback program can result in sustained change over a fairly long period of time and that actually receiving feedback may be less important than the exposure to the valued behaviors. We use control theory and goal setting theory as frameworks for explaining the results and suggesting directions for future research.     

STATISTICAL POWER AND COST IN TRAINING EVALUATION: SOME NEW CONSIDERATIONS

Two ways to reduce the costs of training evaluation are examined. First, we examine the potential for reducing the costs of training evaluation by assigning different numbers of subjects into training and control groups. Given a total N of subjects, statistical power to detect the effectiveness of a training program can be maximized by assigning the subjects equally to training and control groups. If we take into account the costs of training evaluation, however, an unequal-group-size design with a larger total N may achieve the same level of statistical power at lower cost. We derive formulas for the optimal ratios of the control group size to the training group size for both ANOVA and ANCOVA designs, incorporating the differential costs of training and control group participation. Second, we examine the possibility that using a less expensive proxy criterion measure in place of the target criterion measure of interest when evaluating the training effectiveness can pay off. We show that using a proxy criterion increases the sample size needed to achieve a given level of statistical power, and then we describe procedures for examining the tradeoff between the costs saved by using the less expensive proxy criterion and the costs incurred by the larger sample size.