Abstract
Sixty Ss, 20 in each of three IQ levels (Normal, Hi IQ Retarded and Lo IQ Retarded) responded with a single word each time they heard a tap, which was presented for half of the Ss once every 2 sec and for the other half once every 4 sec. The Hi IQ Retarded Ss’ performance was like the Lo IQ Retarded group at the faster presentation rate but like the Normal Ss at the slower rate. Efficiency of performance for all groups was greater at the slower rate.
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References
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Gordon, M.C., Gordon, A.M. Stimulus presentation rate and verbal response efficiency. Psychon Sci 8, 259–260 (1967). https://doi.org/10.3758/BF03331650
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DOI: https://doi.org/10.3758/BF03331650