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Donnellan, M. Brent; Ferguson, Christopher J. – Developmental Psychology, 2014
Zimmerman (2014) suggested that our reanalysis adds little to the scientific literature. We disagree. We clarify our motivations and explain how further analyses based on his suggestion for age do not change our conclusions. Moreover, we believe the nascent experimental literature is more in line with our interpretations than Zimmerman's. We…
Descriptors: Effect Size, Reader Response, Criticism, Language Acquisition
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Ferguson, Christopher J.; Donnellan, M. Brent – Developmental Psychology, 2014
Zimmerman, Christakis, and Meltzoff (2007) reported that exposure to Baby Einstein videos was negatively associated with language development. The current study uses the Zimmerman et al. (2007) data set to replicate and extend the original analyses. Caregivers of 392 children aged 6 to 16 months and 358 children aged 17 to 27 months reported on…
Descriptors: Language Acquisition, Replication (Evaluation), Caregivers, Predictor Variables
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Runions, Kevin C.; Keating, Daniel P. – Developmental Psychology, 2007
Little research has examined whether social information processing (SIP) measures from early childhood predict externalizing problems beyond the shared association with familial risk markers. In the present study, family antecedents and first-grade externalizing behaviors were studied in relation to preschool and 1st-grade SIP using data from…
Descriptors: Grade 1, Preschool Children, Social Behavior, Information Processing
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Kliegl, Reinhold; And Others – Developmental Psychology, 1990
Tested serial work recall of young and old adults in an effort to examine developmental reserve capacity in old age. Results showed magnification of differences early in training, and prediction of posttraining scores by the digit symbol substitution variable. (BC)
Descriptors: Age Differences, Cross Sectional Studies, Effect Size, Foreign Countries