Data analysis of 134 twin pairs from the Colorado Reading Project found that approximately 40 percent of the deficit observed in disabled readers is because of genetic factors, 35 percent because of environmental influences shared by twin pairs, and 25 percent because of environmental factors unique to the individual and/or error variance.…

This chapter outlines the theory of cost-benefit analysis and discusses its application to determining the cost-benefit of instructional development projects. Three types of applications are discussed: (1) descriptive applications of single projects; (2) predictive studies of proposed projects; and (3) comparative analysis of alternative projects…

Three studies investigated comfortable loudness levels with particular reference to their application to hearing aid gain prescriptions. The studies, involving 33 normal hearing adults and 77 adults with hearing impairments, suggest that comfortable loudness levels for continuous speech bands can be estimated rather accurately, quickly, and with…

Research findings were reviewed on the Auditory Visual Combined Discrimination Test, which can be used with severely and profoundly mentally retarded persons to assess basic position, visual, and auditory discriminations. The test was found to be reliable and predictive of client performance in classroom learning, language, and vocational tasks.…

Statistical analyses of scores on subtests of the Intelligence Test for Visually Impaired Children were done for two groups of children, either with or without usable vision. Results suggest that the battery has differential factorial and predictive validity. (Author/DB)

Three groups of adolescents (n=82) who received treatment for emotional disturbances as children were compared on four predictive indicators: organic problems, family problems, conduct disorders, and academic problems. Using childhood treatment data, significant differences were found between the aggressive group and one or both of the comparison…

The prereading and reading performance of 370 predominantly Hispanic, bilingual school children was followed for 6 years. A 5-test Screening Index misclassified many failing readers but accurately identified children who eventually read well. Predictor tests administered at beginning of first grade showed significant correlations with reading at…

This study examined the development of phonological and reading skills in 171 students from the beginning of first grade (Time 1) to the end of second grade (Time 4). The study found that reader group membership (nondisabled, reading disabled, or poor reading) at Time 4 could be very accurately predicted from students' Time 1 scores. (Author/DB)

This study examined possible early predictors of reading problems in at-risk children (ages 53 to 77 months). Results indicated that early measures of language awareness are good predictors of later reading performance but that different measures are good predictors for different children. (Author/DB)

The study found that primary grade children with reading impairments (n=24) or learning disabilities (n=8) demonstrated a marked deficit in ability to discriminate patterned pairs of tones on the Seashore Rhythm Test compared to controls (n=26). Results suggest use of the test to detect young children with potential reading problems. (Author/DB)

The theoretical model of medical student performance begins with 38 measures, reduced to 18 without loss of information. These measures are shown to reflect five underlying theoretical interrelated variables: medical knowledge; clinical performance; science aptitude; college achievement; and attitudes and values. Results should be useful in…

The United States Employment Service is now able to expand the General Aptitude Test Battery (GATB) coverage from approximately 400 jobs to all candidates for every job in the Dictionary of Occupational Titles (over 12,000 occupations). In addition, employers can now receive more useful feedback on applicants. Instead of reporting whether a…

The Hiskey-Nebraska Test of Learning Aptitude (H-NTLA) (Hiskey, 1966) has been regarded by reviewers as one of the best instruments for assessing the learning abilities of hearing-impaired children. However, there has been a paucity of research on the validity of this test. Further, there is no established test-retest reliability, and questions…

The accuracy of SEARCH for identifying children at risk for developing learning disabilities was evaluated with 1,107 kindergarten children. Children identified as at risk were of average intelligence. SEARCH scores were significantly correlated with sequential and simultaneous information processing skills. SEARCH predicted adequacy of…

A longitudinal study was conducted to determine the factors influencing college student persistence in remaining in school. Persistence was examined at two points: after the first year and 4 years after enrollment. The study was conducted at an urban university using the American College Testing's Entering Student Survey and Student Opinion…