The factorial structure of the California Achievement Test subtests appears to consist of only one common factor in each grade. This study indicates that there is considerable overlap among the subtests and that there is minimal support for the use of subtest scores as measures of independent constructs. (Author/PN)

The Wechsler Intelligence Scale for Children (WISC) has a long history, dating back to the 1930s, when it was devised specifically for measuring the intelligence of children through verbal and performance subtests. Intelligence quotients (IQs) are developed for verbal and performance skills. The subtests, their factors, indices derived from them,…

The comparability of Scholastic Aptitude Test (SAT) Verbal and Mathematical scores was investigated for one nonhandicapped and nine handicapped populations. The handicapped populations included hearing impaired, visually impaired, learning disabled, and physically disabled students. Special methods of test administration included Braille and large…