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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)
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Ter Laak, J.; De Goede, M.; Aleva, A.; Van Rijswijk, P. – Journal of Genetic Psychology, 2005
The authors examined aspects of reliability and validity of the Goode-nough-Harris Draw-A-Person Test (DAP; D. B. Harris, 1963). The participants were 115 seven- to nine-year-old students attending regular or special education schools. Three judges, with a modest degree of training similar to that found among practicing clinicians, rated the…
Descriptors: Foreign Countries, Freehand Drawing, Human Body, Children