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Mourad El Karkri; Antonio Quesada; Marta Romero-Ariza – Review of Education, 2025
Until now, the conventional approach using two distinct groups, experimental and control, continues to dominate research, especially education research. Researchers, particularly those who are active in this domain, readily recognise this pattern when surveying literature. This article explores the use of the Solomon four-group design as a…
Descriptors: Educational Research, Research Methodology, Experimental Groups, Control Groups
Bunker, Kerry A.; Cohen, Stephen L. – Training and Development Journal, 1978
After offering some possible explanations for the existing inadequacies in evaluating organizational training programs, the authors discuss several evaluation issues, particularly internal validity. Methods for overcoming evaluation inadequacies and the implications for better controlled evaluation designs are also covered. (EM)
Descriptors: Control Groups, Evaluation Criteria, Evaluation Methods, On the Job Training
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Toedter, Lori J.; And Others – Evaluation Review, 1990
The problem of the appropriate comparison group for bereavement studies is discussed. The use of the retrospective pretest design is illustrated through a longitudinal study of bereavement outcome following pregnancy loss, involving 138 bereaved women and a comparison group of 215 currently pregnant women. (SLD)
Descriptors: Adults, Bereavement, Comparative Analysis, Control Groups
Fitz-Gibbon, Carol Taylor; Morris, Lynn Lyons – 1978
The evaluation design, which prescribes when and from whom to gather data, is described as significant because it can lend credibility to evaluation results. The objectives of this booklet are to aid the evaluator in: choosing a design; putting it into operation; and analyzing and reporting the data. Examples include both formative and summative…
Descriptors: Analysis of Variance, Control Groups, Educational Research, Evaluation Methods
Hubert, John A. – 1978
The Elementary and Secondary Education Act Title I Evaluation and Reporting System is a method for giving a federally funded project in reading or math an overall score on its cognitive effectiveness. This System introduced the Normal Curve Equivalent (NCE) as an aid in aggregating Title I program scores across states and nationwide regardless of…
Descriptors: Achievement Gains, Achievement Tests, Compensatory Education, Control Groups