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Science and the Below Average Student: The Effect of Curriculum Materials on Attitudes
Peer reviewed Peer reviewed
Milson, James L. – Journal of Experimental Education, 1973
Science curriculum materials designed to improve the attitudes of below average students were developed from guidelines based on a survey of the strengths and weaknesses of these students. (Author)
Descriptors: Guidelines, Program Evaluation, Sampling, Science Materials
Problems and Solutions in Evaluating Child Outcomes of Large-Scale Educational Programs.
Peer reviewed Peer reviewed
Abrams, Allan S.; And Others – Journal of Experimental Education, 1979
Evaluation of large-scale programs is problematical because of inherent bias in assignment of treatment and control groups, resulting in serious regression artifacts even with the use of analysis of covariance designs. Nonuniformity of program implementation across sites and classrooms is also a problem. (Author/GSK)
Descriptors: Analysis of Covariance, Comparative Analysis, Compensatory Education, Educational Assessment
Measuring Differences among Non-Randomized Groups: an Epidemiological Model for Identifying Successful School Programs.
Peer reviewed Peer reviewed
Marascuilo, Leonard A. – Journal of Experimental Education, 1979
The utility of the biomedical model of adjusted statistics is demonstrated. The model is recommended for use by educational researchers to randomize subjects for a more accurate estimate of school programs' success or failure when compared across classrooms or other units. (Author/MH)
Descriptors: Academic Achievement, Analysis of Variance, Comparative Analysis, Criterion Referenced Tests