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A comparison of some processing time measures based on eye movements

1985; Elsevier BV; Volume: 58; Issue: 1 Linguagem: Inglês

10.1016/0001-6918(85)90030-7

1873-6297

Harry E. Blanchard,

Intelligent Tutoring Systems and Adaptive Learning

Fifty-one college students read a passage while their eye movements were being monitored. Five different measures of processing time in reading were derived from the eye movement data and were each fit, using hierarchical multiple regression, to a model similar to that of Just and Carpenter (1980). The processing time measures were Just and Carpenter's gaze durations, two modified gaze duration measures, number of fixations, and average fixation duration. The components of gaze duration, number of fixations and average fixation duration, were shown to be influenced by different independent variables. Also, some evidence was obtained which called into question one of the assumptions of the gaze duration measure: the assumption that there is a trade-off between increased fixation duration and making multiple fixations on a word when increased processing time is needed. It was suggested that gaze duration measures should be considered as indices of aspects of the processing of words during reading rather than as measures of the actual processing time required by those words.