Abstract
BRIER, NORMAN, and JACOBS, PAUL I. Reversal Shifting: Its Stability and Relation to Intelligence at Two Developmental Levels. CHILD DEVELOPMENT, 1972, 43, 1230-1241. This study dealt with intelligence differences in an optional-shift paradigm between children who performed a reversal shift and those who performed either a nonreversal or nonselective shift. 2 optional-shift tasks using two different pairs of stimulus dimensions were administered a week apart to 32 kindergarten and 32 second-grade children. When Ss were categorized according to first-task shift behavior, IQ was not related to type of shift at either age level. Shift behavior was not found to be reliable: only 50% of kindergarten Ss and 59% of second-grade Ss showed the same kind of shift on both tasks. But an analysis of data from only those Ss who made the same type of shift twice showed that reversal shifters possessed significantly higher IQs than nonreversal and nonselective responders in kindergarten but not in second grade. This latter finding also emerged when all Ss were categorized only on the basis of second-task shift behavior.
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