Identifying Exemplary Science Teachers Through Their Classroom Interactions with Students

The purpose of the study described in this paper was to use the Questionnaire on Teacher Interaction (QTI) to identify and describe exemplary science teachers. With a sample of over 493 science students, the reliability of the QTI scales ranged from 0.69–0.87. The exemplary teachers were identified as those whose students' perceptions were more than one standard deviation above the mean on the scales of Leadership, Helping/Friendly, and Understanding and more than one standard deviation below the mean on the Uncertain, Dissatisfied and Admonishing scales. The construct validity of the QTI to identify these exemplary teachers was confirmed through interviews with students and these views are reported in the article. This revised version was published online in July 2006 with corrections to the Cover Date.     

The IQs of children with ADHD are normally distributed

The purpose of this investigation was to determine whether or not attention-deficit/hyperactivity disorder (ADHD)-when there was an absence of reading problems-was associated with having a high IQ. The vocabulary and block design short forms of the Wechsler Intelligence Scale for Children-Third Edition were administered to 63 children with ADHD, 69 children with reading difficulties (RD), and 68 children with comorbid ADHD + RD. Results indicated that the distributions of estimated Full Scale IQs (FSIQ) for each of the three groups of children did not differ significantly from a normal distribution, with the majority of children (more than 50%) in each group scoring in the average range. The percentage of children with ADHD who scored in the above-average range for FSIQ was not significantly higher than the percentages of children in the other two groups. No significant group differences emerged for estimated FSIQ, vocabulary, or block design. It was concluded that children with ADHD are no more likely to have an above-average IQ than are other children.