An Evaluation of Some Methods Used in the National Assessment of Educational Progress. Final Report.

Autor/inn/en	Cramer, Elliot M.; Appelbaum, Mark I.
Institution	North Carolina Univ., Chapel Hill. L.L. Thurstone Psychometric Lab.
Titel	An Evaluation of Some Methods Used in the National Assessment of Educational Progress. Final Report.
Quelle	(1976), (131 Seiten) PDF als Volltext kostenfreie Datei Verfügbarkeit
Dokumenttyp	gedruckt; online; Monographie
Schlagwörter	Academic Achievement; Analysis of Covariance; Analysis of Variance; Comparative Analysis; Groups; National Surveys; Statistical Analysis; National Assessment of Educational Progress + Suchen Sie Ihr Suchwort? Schulleistung; Statistische Analyse
Abstract	A recurring problem in educational research has been the adjustment of data to account for initial differences among observed groups of individuals on attributes uncontrollable by the researcher. The procedure called "balancing" is introduced in the National Assessment of Educational Progress report as an adjustment method for this purpose. Since it is apparent that balancing is being used extensively both in the NAEP work and in the analysis of data from state assessments, this research aims at the development of a better understanding of the method and an evaluation of its strengths and weaknesses. The investigation of the nature of balancing required a detailed investigation of the nonorthogonal analysis of variance, the fundamental concepts of marginal means and marginal populations, as well as the investigation of balancing-like data analytic techniques such as "smear and sweep," analysis of covariance, and standardization. It was concluded that the general framework of nonorthogonal analysis of variance encompasses the most useful of the adjustment procedures when used in conjunction with the estimation of weighted marginal means. (RC) Aspect of National Assessment (NAEP) dealt with in this document: Procedures (Analysis).
Erfasst von	ERIC (Education Resources Information Center), Washington, DC