78, p =  08), a significant effect on the probability of regressi

78, p = .08), a significant effect on the probability of regressing into the target (z = 4.65, p < .001) and marginal effect on the probability of regressing out of the target (z = 1.94, p = .05). The only significant

interactions between task and our manipulations of frequency and predictability were on regressions into the target (frequency items: z = 2.63, p < .01; predictability items: z = 2.36, p < .001); all other interactions were not significant (all ps > .17). In addition to the analyses reported in Section 2.2.2.1, we tested whether the interaction in the frequency stimuli was significantly different from the null interaction in the predictability stimuli (i.e., the three-way interaction) see more in two key measures: gaze duration and total time. These measures have been taken to reflect the time needed for initial word identification

(gaze duration) and to integrate the word into the sentence (total time). The results of these analyses revealed this website a significant three-way interaction for both gaze duration (b = 11.95, t = 2.01) and total time (b = 19.93, t = 2.27), confirming our analyses above in suggesting that the effect of predictability did not increase in proofreading while the effect of frequency did. Thus, our data do not show support for an account of proofreading in which subjects merely read more cautiously (and predictability effects would likewise increase) but rather support a qualitatively different type of task-sensitive word processing between reading for comprehension and proofreading. As discussed in Section 1.3.1, when proofreading PFKL for errors that produce real, wrong words, one must take into account the sentence context. Thus, one would expect that, when proofreading for wrong

word errors, subjects may need to or want to take into account the predictability of a word more fully than they do when proofreading for nonword errors (as in Experiment 1 and Kaakinen & Hyönä, 2010). We might expect, then, that if subjects can adapt how they process words to the fine-grained demands of the task, then when proofreading for errors that produce actual words, subjects would show larger effects of predictability. Presumably, this would result from subjects’ need to spend more time determining whether a word that is unlikely in context is an error. To test whether subjects adapt how they process words based on the precise nature of the spelling errors included in the stimuli, we ran a second experiment, similar to Experiment 1 except that, during proofreading, subjects checked for spelling errors (letter transpositions) that produced real, wrong words (e.g., trail produced trial; “The runners trained for the marathon on the trial behind the high school.”).

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