S. Powell

The Effect on Reasoning, Reading and Number Performance of Computer-Presented Critical Thinking Activities in Five-Year-Old Children.

Richard J. Riding, R. Riding, S. D. Powell, 1987 .

The Facilitation of Thinking Skills in Preschool Children using Computer Presented Activities

Richard J. Riding, R. Riding, S. D. Powell, 1985 .

The Improvement of Thinking Skills in Young Children using Computer Activities: a replication and extension

Richard J. Riding, R. Riding, S. D. Powell, 1986 .

The effect of test orientation training on children's achievement test scores.

S. Powell, 1976 .

Utilization of an Experimenter-Controlled Manikin in Analysis of Social Stimuli Maintaining Behavior of an Autistic-like Child

S. Powell, J. Sandler, C. V. Van Dercar, 1979, Psychological reports.