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Boser, Judith A.	2
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Research on Mail Survey Methods: Potential Confounding of Treatment Effects Due to Followup Contacts.

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Boser, Judith A. – 1996

This review focuses on the effects of multiple contacts with respondents on studies of response rates to mail surveys. After screening articles on research criteria, such as the presence of original research and sufficient reporting detail, 28 studies remained of the original 208 identified. The difference in response rate between treatment and…

Descriptors: Control Groups, Experimental Groups, Followup Studies, Incentives

Using National Surveys To Improve the Efficiency and Effectiveness of Broad-Based Program Evaluations.

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Clark, Sheldon B.; Boser, Judith A. – 1993

The suggestions offered in this paper are based on the experiences of two scientific researchers of how evaluations undertaken in a competitive arena, in which true experimental designs are not viable, can be designed in such a way that meaningful comparative data can be examined. Case studies of the Science and Engineering Research Semester and…

Descriptors: Case Studies, Cohort Analysis, Comparative Analysis, Control Groups