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Comparative Analysis	2
Mathematical Models	2
Analysis of Covariance	1
Attitude Measures	1
Behavior Patterns	1
Computer Software	1
Consumer Economics	1
Correlation	1
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Older Adults	1
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Evaluation Review

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Siddharthan, Kris	1
Van der Kamp, Leo J. T.	1
Vooijs, Marcel W.	1

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Journal Articles	2
Reports - Evaluative	1
Reports - Research	1

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Linear versus Nonlinear Analysis in the Measurement of Effects in a Quasi-Experimental Design.

Peer reviewed

Vooijs, Marcel W.; Van der Kamp, Leo J. T. – Evaluation Review, 1991

A two-step procedure is developed for the analysis of pretest-posttest data. Nonlinear canonical correlation analysis is followed by covariance analysis of optimally scaled pretest and posttest measures. The procedure is available in the computer program CANALS. Advantages of the two-step procedure are discussed. (SLD)

Descriptors: Analysis of Covariance, Comparative Analysis, Computer Software, Correlation

Evaluation of Behavioral Demand Models of Consumer Choice in Health Care.

Peer reviewed

Siddharthan, Kris – Evaluation Review, 1991

Consumer choice of health provider plan and preference for a personal physician were studied for 1,438 elderly adults using a joint logit model (JL) and a nested logit model. Choice criteria used by senior citizens, and reasons the nested choice model explains choice behavior better than the JL are examined. (SLD)

Descriptors: Attitude Measures, Behavior Patterns, Comparative Analysis, Consumer Economics