The purpose of this study was to investigate the effects of 1st-grade number knowledge tutoring with contrasting forms of practice. Tutoring occurred 3 times per week for 16 weeks. In each 30-min session, the major emphasis (25 min) was number knowledge; the other 5 min provided practice in 1 of 2 forms. Nonspeeded practice reinforced relations…

This report contains national estimates of school achievement for children aged 6-11, as measured by the Reading and Arithmetic subtests of the Wide Range Achievement Test (WRAT). This data was obtained in the second cycle of the Health Examination Survey, conducted in 1963-65. A probability sample of 7,417 children was selected to represent the…

The later effects of the Direct Instruction Follow Through program were assessed in five diverse sites in the United States. Low income fifth and sixth graders who had completed the full 3 years of this first through third-grade program were tested on the Metropolitan Achievement Test (MAT), Intermediate Level, and the Wide Range Achievement Test…

National estimates of school achievement as measured by the reading and arithmetic subtests of the Wide Range Achievement Test (WRAT) for the noninstitutionalized population of the United States aged 12-17 years are presented. Data were obtained in the Health Examination Survey (HES) of 1966-70. In the survey a probability sample of 7,514 youths…