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Direct linkXiao, Leifeng; Hau, Kit-Tai – Applied Measurement in Education, 2023
We compared coefficient alpha with five alternatives (omega total, omega RT, omega h, GLB, and coefficient H) in two simulation studies. Results showed for unidimensional scales, (a) all indices except omega h performed similarly well for most conditions; (b) alpha is still good; (c) GLB and coefficient H overestimated reliability with small…
Descriptors: Test Theory, Test Reliability, Factor Analysis, Test Length
Peer reviewedByrne, Barbara M.; Schneider, Barry H. – Applied Measurement in Education, 1988
For 241 normal and 132 gifted fifth graders and 113 normal and 117 gifted seventh graders in Ottawa (Ontario), exploratory and confirmatory factor analyses investigated the factorial validity of the Perceived Competence Scale for Children (PCSC). Overall, the PCSC demonstrated sound psychometric properties. (SLD)
Descriptors: Ability, Academically Gifted, Age Differences, Competence
