Abstract
Some perceptual manipulations, such as font size or bolding, can affect the estimations of future memorability (i.e., judgments of learning or JOLs). In two experiments, we studied the effect on JOLs of another perceptual manipulation: the interletter spacing. Spacing may decrease JOLs via beliefs on the effect of spacing on memory, or it may increase JOLs via feelings of processing fluency. In Experiment 1, we found that people do not hold any particular belief on the effect of spacing on memory for a list of words. In Experiment 2, we found that letter spacing did not affect JOLs. We also replicated the results that participants believe that words in large font size will be better remembered and that they rate words in large font size with higher JOLs. In sum, this research showed that not all the perceptual characteristics are used as cues to metamemory.
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