PREDICTION OF WORD-RECOGNITION THRESHOLDS ON THE BASIS OF STIMULUS-PARAMETERS.

The effect of stimulus-parameters on word-recognition thresholds was investigated. Fifty words were tachistoscopically administered to 24 subjects with an average age of 16.4 years. Of the 40 parameters analyzed, the following were the best predictors of the thresholds and were included in a multiple regression equation: Classification of words into concrete nouns vs. all others; Classification of words with vs. without prefixes; Logarithms of word-frequencies; and Number of letters.