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Direct linkMourad 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
Download full textRaffeld, Paul; Reynolds, William M. – 1977
The pretest-posttest design referred to as Design 2 by Campbell and Stanley (1963) is commonly used in educational research and evaluation. The tenability of the assumption of a zero population difference commonly used with this design is questioned. A nonzero population estimate based on the mean difference observed in test-retest reliability…
Descriptors: Control Groups, Correlation, Experimental Groups, Hypothesis Testing
Peer reviewedToedter, 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
Wolverton, John B., Jr. – 1976
A quasi-experimental design was employed to determine the effects of a workshop, designed to familiarize teachers and counselors with a technical institute in the North Carolina Community College System, on knowledge and attitudes related to the programs and practices of the institution. Subjects were assigned to experimental and control groups by…
Descriptors: Analysis of Variance, Attitude Change, Attitude Measures, Attitudes
PDF pending restorationWeber, Margaret B. – 1976
An application of evaluation methodology to innovative educational programs through a case study of a Chicago suburban high school program for alternative education is presented. The evaluation methodology encompasses the difficulty in combining comparative programs, individual-diagnostic, and individual developmental measures, the selection of…
Descriptors: Achievement Gains, Affective Measures, Affective Objectives, Behavioral Objectives
