This study investigated the concurrent validity of the Mayes Motor Free Compilation (MMFC) using the mental scale of the Bayley Scales of Infant Development (BSID) as the criterion variable with 50 typically developing preschool-aged children. Results indicated that the MMFC and the BSID scores were significantly and positively correlated.…

In a multiple baseline design, a teenager with a mental age of four years was taught two abstractions. One was the oddity principle (selecting the one object in a group which differs from the rest). The other was seriation (aligning objects along a continuum of size, and inserting new objects into their proper places in the alignments). These…

During the 1978-1979 school year an early identification program for pupils in kindergarten and grade 1 was designed to select those students who would have difficulty with the London, Canada, mathematics or language arts curriculum. The identification program, based primarily on teachers' judgments, was extended in the two subsequent years to…

The original "Bayley Scales of Infant Development" (BSID) (Bayley 1969) have been among the most popular measures of performance and aptitude of infants. In the present study the reliability and construct validity of mental and motor scores on the revised Bayley Scales of Infant Development-II (BSID-II) were investigated. A national…

This study of 28 girls (ages 2-19) with Rett Syndrome found profound handicaps in the intellectual and adaptive areas, according to standardized tests. Subjects seemed capable of learning some self-help skills at a basic level. The Cattell Mental Age was significantly negatively correlated with chronological age. (JDD)

This handbook is a cooperative project, the outcome of a conference called by the United States Office of Education to consider the problems of curriculum adjustment for mentally retarded children. The members of the conference are the joint authors of this bulletin. In October 1934, 13 leaders in the education of retarded children, working in…

The usefulness of the Preschool Preposition Test (PPT) as a cognitive screening and diagnostic tool for handicapped children is demonstrated through results of eight independent studies. The subjects were 354 children and youths, aged two to 20 years, with various handicaps: mentally retarded, autistic-like, moderately emotionally disturbed,…

This bulletin includes: (1) a general statement of present thoughts and trends, covering the accepted philosophy of purpose, influence of modern educational psychology, trends in enrollment, and the nature and trends of the present social order; (2) secondary pupil population, addressing enrollment, chronological age representation in secondary…