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Download full textPhatak, Pramila; And Others – 1973
This study reports various aspects of the analyses carried out on the longitudinal data reported in a previous study (PS 007 345) for determining the general growth patterns and growth velocity of mental and motor development. Preliminary analyses focused on the selection of the growth curve, its evaluation in the 208 individual cases, and the…
Descriptors: Charts, Classification, Cognitive Development, Comparative Analysis
Rauh, Hellgard – 1973
In this study an attempt was made to obtain a developmental dimension for estimating longitudinal development on the basis of cross-sectional data. To check the validity of this approach, the cross-sectional data were compared with true longitudinal data. Forty-three public school children were given a series of conservation tasks in four…
Descriptors: Child Development, Cognitive Development, Conservation (Concept), Cross Sectional Studies
