This study determined the working memory (WM) components (executive, phonological short-term memory [STM], and visual-spatial sketchpad) that best predicted mathematical word problem-solving accuracy in elementary schoolchildren (N = 392). The battery of tests administered to assess mediators between WM and problem-solving included measures of…

This paper examines the extent to which self-assessed intelligence (SAI) may be a function of personality traits, gender, and "actual" intellectual ability (as measured through psychometric g) in a sample of 188 (119 female) UK university students. Participants completed three cognitive ability tests and the "Big Five"…

Item components that might contribute to the difficulty of items on the Raven Colored Progressive Matrices (CPM) and the Standard Progressive Matrices (SPM) were studied. Subjects providing responses to CPM items were 269 children aged 2 years 9 months to 11 years 8 months, most of whom were referred for testing as potentially gifted. A second…