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A Cross-Sectional Test of Sign Creation by Children in the Gesture and Vocal Modalities
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Lister, Casey J.; Burtenshaw, Tiarn; Walker, Bradley; Ohan, Jeneva L.; Fay, Nicolas – Child Development, 2021
Naturalistic studies show that children can create language-like communication systems in the absence of conventional language. However, experimental evidence is mixed. We address this discrepancy using an experimental paradigm that simulates naturalistic sign creation. Specifically, we tested if a sample of 6- to 12-year-old children (52 girls…
Descriptors: Case Studies, Sign Language, Nonverbal Communication, Comparative Analysis
Estimating Individual Developmental Functions: Methods and Their Assumptions.
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Burchinal, Margaret; Appelbaum, Mark I. – Child Development, 1991
Quantitative growth curve models for estimating individual developmental functions from various types of longitudinal data are discussed in the context of investigator assumptions and research design characteristics. Linear and nonlinear models that estimate growth curves are illustrated, and contrasted when they are fit to speech development…
Descriptors: Children, Individual Development, Individual Differences, Language Acquisition
On the Internal and External Validity of Simple Longitudinal Designs
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Labouvie, Erich W.; And Others – Child Development, 1974
The effects of selective dropout and retesting on the assessment of developmental changes in abilities during adolescence are examined. (ST)
Descriptors: Adolescents, Age Differences, Longitudinal Studies, Measurement
The Early Training Project: A Seventh-Year Report
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Gray, Susan W.; Klaus, Rupert A. – Child Development, 1970
Descriptors: Achievement Gains, Educational Retardation, Educationally Disadvantaged, Grade 4