Practice, Familiarity and Reading Rate for Words and Nonsense Syllables

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Abstract
Two experiments were carried out to test a number of hypotheses regarding the effects of practice and S-R familiarity on choice reaction times. In Experiment 1 subjects read lists of nonsense syllables of varying levels of association value and differing degrees of choice. It was found that the slope of reading time per syllable was linear with respect to the log of the number of choices, but that the slope was steeper for syllables of lower association value. In Experiment 2, 4-and 32-choice lists of the same average association value nonsense syllables were read on three successive days, as were lists of common three-letter words. The words showed zero slope against number of choices, and the slope for the nonsense syllables decreased with practice. These results are considered to support recent modifications to views on the role of information theory in psychology.