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Direct linkChen, Yalin; Campbell, Jamie I. D. – Journal of Experimental Psychology: Learning, Memory, and Cognition, 2016
There is a renewed debate about whether educated adults solve simple addition problems (e.g., 2 + 3) by direct fact retrieval or by fast, automatic counting-based procedures. Recent research testing adults' simple addition and multiplication showed that a 150-ms preview of the operator (+ or ×) facilitated addition, but not multiplication,…
Descriptors: Adults, Priming, Arithmetic, Addition
Campbell, Jamie I. D.; Beech, Leah C. – Journal of Experimental Psychology: Learning, Memory, and Cognition, 2014
Several types of converging evidence have suggested recently that skilled adults solve very simple addition problems (e.g., 2 + 1, 4 + 2) using a fast, unconscious counting algorithm. These results stand in opposition to the long-held assumption in the cognitive arithmetic literature that such simple addition problems normally are solved by fact…
Descriptors: Adults, Addition, Mathematics, Generalization
