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Onwuegbuzie, Anthony J.; Levin, Joel R.; Ferron, John M. – Journal of Experimental Education, 2011
Building on previous arguments for why educational researchers should not provide effect-size estimates in the face of statistically nonsignificant outcomes (Robinson & Levin, 1997), Onwuegbuzie and Levin (2005) proposed a 3-step statistical approach for assessing group differences when multiple outcome measures are individually analyzed…
Descriptors: Hypothesis Testing, Statistical Analysis, Effect Size, Probability
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Sterba, Sonya; Egger, Helen L.; Angold, Adrian – Journal of Child Psychology and Psychiatry, 2007
Background: The appropriateness of the "Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition" (DSM-IV) nosology for classifying preschool mental health disturbances continues to be debated. To inform this debate, we investigate whether preschool psychopathology shows differentiation along diagnostically specific lines…
Descriptors: Check Lists, Hyperactivity, Construct Validity, Psychopathology