Abstract
In the first of three experiments, university undergraduates were presented a list of 300 words and 100 nonwords in two sessions. Their confidence that an item was a word was indicated for each item on a 6-point scale. This experiment demonstrated the feasibility of creating a recognition test of vocabulary. In Expeiment II, 100 items were chosen to form a subtest, and the subtest was cross-validated on a new sample of subjects. The tests in Experiments I and II were scored using signal-detection measures. The primary criterion, SAT (verbal) scores, correlated approximately .60 with the test scores. In Experiment III subjects scaled the words and nonwords for four psychological attributes. These were submitted to a stepwise regression with the confidence ratings from Experiment I as the dependent variable. It was concluded that associability. frequency, orthography, and pronounceability all may be components of word recognition. However, only frequency was found to be a significant predictor of the confidence of recognition of nonwords.
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