Dyslexia is a term widely used to describe reading characterised by problems with the fluent and accurate letter or word recognition. Nevertheless, there is no consensus about the definition, origin, and diagnosis of dyslexia and the term is often used very differently by researchers and practitioners. In many cases, research findings are employed…

Background: Clinical trials of medications to alleviate the cognitive and behavioural symptoms of individuals with fragile X syndrome (FXS) are now underway. However, there are few reliable, valid and/or sensitive outcome measures available that can be directly administered to individuals with FXS. The majority of assessments employed in clinical…

Objective: Additional treatments with persisting benefit are needed for ADHD. Because ADHD often shows excessive theta electroencephalogram (EEG) power, low beta, and excessive theta-beta ratio (TBR), a promising treatment is neurofeedback (NF) downtraining TBR. Although several nonblind randomized clinical trials (RCTs) show a medium-large…

A total of 19 graduate students enrolled in a graduate course conducted 6 consecutive administrations of the Wechsler Intelligence Scale for Children, 4th edition (WISC-IV, Canadian version). Test protocols were examined to obtain data describing the frequency of examiner errors, including administration and scoring errors. Results identified 511…

This chapter covers the methods and measures used in the ERA study, with a special focus on age 15 outcomes. First, the authors outline the sample participation rate for the 15-year follow-up--the percentages in all cases referring to the numbers at the time of initial sample contact. They then describe the measures used in this monograph,…

Performed confirmatory factor analyses on the standardization data for the Wechsler Intelligence Scale for Children and the Wechsler Intelligence Scale for Children (Revised) to test competing two- and three-factor hypotheses. Results slightly favored the three-factor solution, but must be weighed against the greater convenience of the two-factor…

Points out the methodological inadequacies and problematic interpretations of a negative assessment of the Wechsler Intelligence Scale for Children that was performed by J. B. Hardy, D. W. Welcher, F. D. Mellits, and J. Kagan. (Author/RL)

Described here are methods being worked out, inductively, to convert to quantifiable factors a set of 144 personal interaction variables observed during individual testing of a multi-cultural sample of 50 high school students referred for school problems. Factor analyses of subsets of variables and comparison of correlations among "factor…

The effectiveness of a computer-assisted training method using computer simulation of two subsets of the Wechsler Intelligence Test for Children--Revised was compared with traditional methods for teaching the administration of the test. Results suggest that the computer simulation was a very effective teaching method. Eleven references are listed.…

In spite of massive research efforts, no clear conclusions have been reached with regard to whether specific exceptional groups demonstrate Wechsler Intelligence Scale for Children-Revised (WISC-R) profiles that reliably differentiate them from normative or other exceptional groups. This study applied multivariate clustering and profile analysis…