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| Journal of Educational… | 1 |
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| Williamson, Gary L. | 1 |
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| Journal Articles | 1 |
| Reports - Research | 1 |
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Peer reviewedWilliamson, Gary L.; And Others – Journal of Educational Measurement, 1991
Longitudinal analyses of individual growth curves and the aggregation of individual curves to describe institutional growth were studied using achievement scores from students moving from grade one to grade eight and their ability scores for one year. Complete data for 529 individuals (reading) and 527 individuals (mathematics) were used. (SLD)
Descriptors: Ability, Academic Achievement, Achievement Tests, Elementary Education
