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Willis, Sherry L.; Baltes, Paul B. – 1980
Two studies examined modifiability in intellectual functioning in older adults. The fluid-crystallized theory provided a theory base for the research. (Fluid intelligence follows a normative decline through adulthood, while crystallized intelligence remains stable or even increases.) In the first study thirty subjects (average age 69.2)…
Descriptors: Adult Development, Adult Education, Cognitive Ability, Cognitive Development
Beller, E. Kuno – 1972
The present study was undertaken to investigate the interplay of motivation, socio-emotional interactions between the child and his educators in the impact of early educational intervention on the later development of disadvantaged children. The study attempted to concentrate on obtaining a broad spectrum of the child's functioning and changes in…
Descriptors: Achievement Tests, Cognitive Tests, Comparative Analysis, Disadvantaged Youth
Sattler, Jerome M. – 2001
This text is designed not only as a teaching text but also as a reference source for students and professionals on the assessment of the cognitive development of children. Chapters address: (1) process challenges of assessing children; (2) context challenges in assessing children; (3) ethical, legal, and professional applications of assessment…
Descriptors: Cognitive Ability, Cognitive Development, Cognitive Measurement, Cognitive Tests