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The results that were derived by means of the Ages and Stages Questionnaires concerning the impact of maternal socio-demographical factors, the child's gender, and premature birth upon early childhood development largely confirm the findings in the literature supporting the construct validity of the ASQ. The ASQ was found to be an effective diagnostic tool of developmental delay and/or disturbances. The development of gender dependent norms is recommended.
Richter et al. (Tue,) studied this question.