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Grimm, Kevin J. – International Journal of Behavioral Development, 2007
Recent advances in methods and computer software for longitudinal data analysis have pushed researchers to more critically examine developmental theories. In turn, researchers have also begun to push longitudinal methods by asking more complex developmental questions. One such question involves the relationships between two developmental…
Descriptors: Data Analysis, Depression (Psychology), Academic Achievement, Developmental Stages
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Mottron, Laurent – Journal of Autism and Developmental Disorders, 2004
A meta-analysis was performed on the 133 cognitive and behavioral papers in autism using comparison groups in the 1999-2002 period. High-functioning (average IQ: 84.7), adolescents (average, 14.4 years) are largely dominant. IQ is the most frequent matching variable in use (51.2%). The instruments that are most frequently used to determine IQ or…
Descriptors: Measurement Techniques, Intelligence Quotient, Asperger Syndrome, Autism
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Pan, Barbara Alexander; Rowe, Meredith L.; Spier, Elizabeth; Tamis-Lemonda, Catherine – Journal of Child Language, 2004
This study examined parental report as a source of information about toddlers' productive vocabulary in 105 low-income families living in either urban or rural communities. Parental report using the MacArthur Communicative Development Inventory-Short Form (CDI) at child age 2;0 was compared to concurrent spontaneous speech measures and…
Descriptors: Toddlers, Correlation, Child Language, Language Acquisition