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Harnqvist, Kjell1
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Primary Mental Abilities at Collective and Individual Level. No. 60.
Harnqvist, Kjell – 1977
According to Cronbach's method of data analysis--which decomposes individual scores into separate components for different levels of aggregation--data collected for an investigation of the development of individual differences in ability test scores from grade 4 through grade 9 were grouped into school district, class, and individual components.…
Descriptors: Ability Identification, Classification, Cognitive Ability, Cognitive Tests