ERIC Number: ED147339
Record Type: RIE
Publication Date: 1977-Oct
Reference Count: 0
A Note on the Correlations between Increments, Cumulated Attainment and a Predictor. No. 62.
A model demonstrates how low correlations for academic achievement in separate units of instruction can be compatible with high correlations for cumulated achievement. The unit achievement is assumed to consist of a task-specific part and a part correlated with a predictor. When units of learning are cumulated, attrition of earlier learning takes place according to a certain retention ratio. This paper illustrates how correlations with achievement in other tasks and with a predictor are affected by the cumulation process, using various patterns of parameter values. (Author/MV)
Publication Type: Reports - Research
Education Level: N/A
Authoring Institution: Gothenburg Univ. (Sweden). Inst. of Education.