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Watkins, Julia M.; Watkins, Dennis A. – Journal of Clinical Psychology, 1975
This study researched the Plenk scoring system more thoroughly to see whether it could be used with older children and whether it could differentiate normal from emotionally disturbed Ss. (Author)
Descriptors: Data Collection, Emotional Disturbances, Handicapped Children, Research Methodology
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National Inst. of Child Health and Human Development (NIH), Bethesda, MD. – 1994
The National Institute of Child Health and Human Development (NICHD) Study of Early Child Care is an ongoing, prospective, 3-year longitudinal study of over 1,300 full-term healthy infants and families from 10 sites across the United States. While the sample is not nationally representative, the subjects come from major regions of the country: the…
Descriptors: Child Behavior, Child Development, Data Collection, Day Care
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Irvine, David J.; And Others – 1977
Approximately 6,500 children are enrolled per year in the New York State Experimental Prekindergarten Program (PreK). In 1975-76 a longitudinal study was begun to determine the program's impact on the development of children while enrolled in the program and in the primary grades. Samples from a population of 5,245 four-year-old prekindergarten…
Descriptors: Age Differences, Analysis of Covariance, Classroom Observation Techniques, Cognitive Development