1. Individual differences in skill learning: An integration of psychometric and information processing perspectives;Ackerman;Psychological Bulletin,1987
2. Individual differences in automatic and controlled information processing;Ackerman,1985
3. Reaction time and mental retardation;Baumeister,1968
4. Maintenance and generalization of skills and strategies by the retarded;Borkowski,1979
5. Strategy production in the retarded;Bray,1979