![]() ![]() Because we had no accessibility to any diagnostic tests we compared these two developmental screening tools to determine their agreement coefficient. ASQ is not a diagnostic gold standard test. In order to determine agreement coefficient, these children were also evaluated by ASQ (Ages and Stages Questionnaires) test. Alternatively, if 'questionable scores' were included with normal scores, sensitivity was 46% and specificity 80.Īnother 25% of children were retested by another examiner (inter-rater reliability). A study found sensitivity of 80% if 'questionable scores' were included with abnormal scores but specificity of 46%. Sometimes DDST results are interpreted as normal, suspect, questionable (these children cannot pass some items that 75–95% of age matched children could pass them) and untestable. Screening by it produces 3 scores: normal, suspect and untestable (these children refused parti-cipating in some items that 95% of age matched children could pass them). DDST-II assesses child's development in 4 general areas: 1) personal–social (25 items), 2) fine motor- adaptive (29 items), 3) language (39 items), and 4) gross motor (32 items). ![]() ![]() Although there is doubt about its limited specificity (43%) and risks of over referral, it has high rate of sensitivity (83%) and identifies children with developmental delays. DDST-II is a brief and validated screening tool that many of pediatricians are familiar with it. ![]()
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