A study investigated the differential effects of psycholinguistic training programs on Illinois Test of Psycholinguistic Abilities (ITPA) scores obtained by educable mentally retarded, trainable mentally retarded, and culturally-economically disadvantaged preschool and elementary students. (Author/SW)

During the 1973-74 school year, 230 trainable mentally retarded (TMR) children (ages 7 to 14 years) were exposed to one of two language training conditions: Distar or Peabody. A population of 116 continuees from the first year of the project and 114 new entries were assigned in as random a fashion as possible to either Distar or Peabody. Ss were…

Effects of the different components of the Distar language program were tested on 48 trainable mentally retarded (TMR) children. Three designs were used comparing IQ, sex, continuation status, selected standardized test results, and replicates. Results indicated that the degree of previous formal language training (continuation status) did not…

In this study, the Peabody Language Development Kit, originally designed for culturally deprived and mentally retarded children, was tested to see how it affected the psycholinguistic abilities and beginning reading development of normal children. Ninety-seven kindergartners were randomly divided into an experimental group who used the Peabody Kit…

The objective of this study was to develop and evaluate two procedures for providing preschool education for rural 4-year-olds by using a mobile laboratory. The project used "readimobiles" to determine the effectiveness of a structured, psycholinguistically-based preschool curriculum on black, disadvantaged children. There were three…

This Cooperative Language Development Project had two objectives: (1) to provide a modified language program for culturally disadvantaged first graders and (2) to evaluate the effectiveness of the program in terms of academic, intellectual, and linguistic growth. In a 2-year intervention program experimental versions of the Peabody Language…