ERIC Number: ED231838
Record Type: RIE
Publication Date: 1982-Aug
Reference Count: 0
Generalizability Theory in Program Evaluation.
Rothman, M. L.; And Others
A practical application of generalizability theory, demonstrating how the variance components contribute to understanding and interpreting the data collected to evaluate a program, is described. The evaluation concerned 120 learning modules developed for the Dental Auxiliary Education Project. The goals of the project were to design, implement, and evaluate an innovative curriculum for dental assistants and dental hygienists. A repeated measures design was developed in which students were nested within schools which were crossed with modules and items. Generalizability theory allows for direct comparison of the relative magnitude of the sources of variance in the study design, as well as calculation of a variety of useful generalizability coefficients indicating the relative degree of accuracy with which the investigator can generalize across factors. It allows an assessment of the efficiency of the design in that it is possible to assess changes in generalizability coefficients with changes in numbers of subjects, items, groups, etc. (PN)
Publication Type: Speeches/Meeting Papers; Reports - Research
Education Level: N/A
Authoring Institution: N/A
Identifiers: Biomedical Computer Programs; Dental Auxiliary Education Project; Generalizability Theory; Internal Consistency; Magnitude Estimates; Repeated Measures Design; Variance (Statistical)
Note: Paper presented at the Annual Meeting of the American Psychological Association, (Washington, DC, August 23-27, 1982). Table 1 contains small print.