Relationships between intelligence test scores and measures derived from reaction time and perceptual speed procedures were investigated. Only three reaction time measures produced correlations greater than .25 with a general intelligence factor. Test-retest reliability of reaction time measures was low. The reaction time-intelligence relationship…

Compared the Matching Familiar Figures Test performances of 53 children in grades five and six, identified as being depressed, to performances of 53 nondepressed children. The depressed group had longer latencies, made more errors, and was less efficient, even when intellectual differences were taken into account. (Author)

Inspection time (IT) and Peabody Picture Vocabulary Test (PPVT) scores from 75 school children aged 6-13 years in 2001 were compared with the performances of 70 children aged 6-13 years who had attended the same primary school in 1981 ["J. Exp. Child Psychol." 40 (1985) 1.]. ITs for the 2001 sample were measured with the same four-field…

Groups of mentally retarded subjects matched for sex, chronological age, mental age, and length of institutionalization were observed on three reaction time tasks for which pre-response complexity varied. Down's Syndrome subjects did not differ from epileptic and undifferentiated retarded subjects in reaction time performance on any of the tasks.…