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This study addresses four issues in the evaluation of nutrition education programs: (1) the reliability of knowledge, belief, and behavior scales; (2) the effectiveness of programs targeted to the general public; (3) the longitudinal effects of nutrition education interventions; and (4) the...
A previous study indicated that the Wilcoxon W test showed a power advantage over the student's t-test when they were calculated on samples drawn from a common mixed-normal distribution. The present study investigates the effect of correcting for outliers in the mixed-normal samples. The results...
Commonly used techniques for estimating the effect of data error on fund allocations are biased because they fail to account for numerous sources of data error and for misspecification of the allocation formula itself. Alternative techniquesfor estimating the effect of data error are presented...
We present a classroom observation instrument (the Interactive Teaching Map) designed to measure implementation of a comprehensive educational program targeting classroom teaching strategies. Procedures for using the Interactive Teaching Map to collect data and to construct reliable measures of...
This article raises some questions about the relationship between auditing and evaluation in their approaches to program assessment. How are they similar or different? What can they learn from each other? Four aspects of the relationship are examined: (1) the different origins of auditing and...
We review the argumentsfor and against randomized field experiments design to address important questions of social policy. Based on this review, we make a number of recommendations about how the use of randomized field experiments might be fostered.
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