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Longest continuous sleep episode as a function of problem behaviors in children with ASD. FI—irritability, Factor I, Irritability on the Aberrant behavior checklist–Community (ABC-C). FIII—stereotypic behavior, Factor III, stereotypic behavior on the Aberrant behavior checklist–Community. Low, group with an ABC-C score below the median, calculated separately by factor; High, group with an ABC-C score equal or above the median, calculated separately by factor.
