Design and validation of a rapid visual processing measure for screening reading difficulties in early childhood.

In this study, we found a highly significant correlation between the letter and pseudo-letter versions of the MEP task ( r = 0.73, p < 2.2 × 10 −16 ; CI = 0.710–0.758; dis-attenuated correlation r = 0.915, with task reliability of 0.80).

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