Validating the Children's Sleep Habits Questionnaire Against Polysomnography and Actigraphy in School-Aged Children.

Although the current sample size was relatively small, power analyses indicated it was of sufficient size to observe moderate effects and none of the correlations with PSG even approached significance.

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Unfortunately, recent studies show an increasing trend toward decreased sleep in childhood due in part to progressively later bedtimes and unchanged wake times ( 2 , 3 ).

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