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Peer reviewed
Direct linkZhang, Zhonghua – Applied Measurement in Education, 2020
The characteristic curve methods have been applied to estimate the equating coefficients in test equating under the graded response model (GRM). However, the approaches for obtaining the standard errors for the estimates of these coefficients have not been developed and examined. In this study, the delta method was applied to derive the…
Descriptors: Error of Measurement, Computation, Equated Scores, True Scores
Perlman, Michal; Zellman, Gail L.; Le, Vi-Nhuan – Early Childhood Research Quarterly, 2004
The psychometric properties of the revised Early Childhood Environment Rating Scale (ECERS-R) were examined using 202 Colorado child care centers. A factor analysis revealed that the ECERS-R does not measure seven distinct aspects of quality, as asserted by the developers of the ECERS-R, but instead measures one global aspect of quality. This…
Descriptors: Psychometrics, Credentials, Child Care Centers, Rating Scales
