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| Journal of Learning… | 2 |
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| Gerber, Paul J. | 1 |
| Goldberg, Roberta J. | 1 |
| Herman, Kenneth L. | 1 |
| Higgins, Eleanor L. | 1 |
| Parker, Randall M. | 1 |
| Raskind, Marshall H. | 1 |
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Peer reviewedRaskind, Marshall H.; Gerber, Paul J.; Goldberg, Roberta J.; Higgins, Eleanor L.; Herman, Kenneth L. – Journal of Learning Disabilities, 1998
Synthesizes information from a 1995 international symposium on longitudinal research in learning disabilities. Discussion of generic considerations of longitudinal research is followed by examination of issues specific to learning disabilities including definition, attrition, composition of research teams, ethical concerns, data collection, and…
Descriptors: Conferences, Data Collection, Learning Disabilities, Longitudinal Studies
Peer reviewedParker, Randall M. – Journal of Learning Disabilities, 1990
The article examines the concepts of power and control in research design and applies them to a review of the validity of three studies (EC 600 064-066) evaluating the effectiveness of using Irlen tinted lenses with reading-disabled persons. Internal validity, external validity, statistical conclusion validity, and construct validity are…
Descriptors: Color, Data Interpretation, Elementary Secondary Education, Evaluation Research
