The author presents intelligence and learning as theoretically and empirically separate concepts. Examining Spearman's "g" factor and the evolution, phylogeny and psychometrics of intelligence, he concludes that "g" is of dominant importance in scholastic learning. He notes some implications for equal educational opportunity.…

Many studies have demonstrated that student motivation is an important factor in student learning. The recently proposed General Model of Instructional Communication, however, does not include motivation. Based on the assumption that student motivation may be an important factor in student learning, particularly long-term learning and retention,…

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…