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Rhemtulla, Mijke; Little, Todd D. – Journal of Cognition and Development, 2012
Data collection can be the most time- and cost-intensive part of developmental research. This article describes some long-proposed but little-used research designs that have the potential to maximize data quality (reliability and validity) while minimizing research cost. In "planned missing data designs", missing data are used…
Descriptors: Data Collection, Reliability, Validity, Measures (Individuals)
Markowitz, Judith A.; Franz, Susan K. – 1983
Word concepts have long been recognized as an integral part of intelligence, and word definition tasks are frequently used to measure them. Entire subtests requiring definitions, usually called vocabulary tests, are common; because of their apparent stability and comparability with overall intelligence, these subtests have been given a preeminent…
Descriptors: Children, Cognitive Development, Definitions, Elementary Secondary Education
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Safir, Marilyn P. – Sex Roles, 1986
Contrasts results of studies examining sex differences in intellectual functioning in the U.S. and Israel, in cities and on Kibbutzes. Findings indicate cross-cultural and intracultural influences challenge validity of theories that suggest a biological basis for sex differences in intellectual abilities. (SA)
Descriptors: Academic Achievement, Cognitive Development, Cultural Images, Elementary Secondary Education