Mildly retarded young adults were given simple and choice reaction time (RT) tests. Subjects' RTs increased with stimulus complexity. RTs of retarded subjects were slower and evidenced more intraindividual variability than those of nonretarded subjects. Several RT parameters were related to measures of intelligence. (Author/RD)

The extent to which college students performed differentially on 3 x 3 figural analogies administered under two elaborative testing conditions was investigated. Results indicated that subjects who demonstrated a preferred testing condition performed more effectively upon retesting than did a control group not displaying differential performance as…

The relationship between speed of information processing (SIP) and psychometric intelligence was investigated by giving 60 college students (22 males and 38 females) 2 choice reaction time (RT) tests (modified Hick paradigm) and Raven's Advanced Progressive Matrices. Results support an association between intelligence and SIP. (SLD)

Replicates and extends Riding and Powells' study of four-year-olds' problem-solving abilities using computer activities. Achieves similar results, namely significantly greater improvement between the pretest and posttest scores for the treatment group. Suggests that computers could aid worthwhile improvement in young children's thinking…

Using Raven Progressive Matrices Test items, this study developed an empirical measure of subjects' ability to create new problems. The relationship between this ability and problem solving skills was examined. A very low correlation was found between inventing and solving problems. Problem creation was more difficult than problem solving. (BS)

To assess Feuerstein's Learning Potential Assessment Device's (LPAD) ability to identify deficient cognitive functions, Raven's Standard Progressive Matrices were administered to 176 elementary/junior high students--25 percent were rescored--and 12 complete LPAD reports from a university educational clinic were reanalyzed. Correlations were…

Three studies of college students found a sex difference in the correlation of memory scanning rate, short- and long-term components of free recall, and word recognition with memory span. Findings are discussed in terms of prior work and a theory presented to account for the obtained sex differences. (Author/RD)

A study of the responses made to problems selected from Raven's Progressive Matrices showed differences in the kinds of errors typically made by eighteen-year-old students. Nine problems were used and the 68 subjects were told to draw their answers on the answer sheets. There were two trials per puzzle. A classification system, devised for errors,…

According to mental speed theory of intelligence, the speed of information processing constitutes an important basis for cognitive abilities. However, the question, how mental speed relates to real world criteria, like school, academic, or job performance, is still unanswered. The aim of the study is to test an indirect speed-factor model in…

Information processing was measured in terms of reaction time and movement time to stimulus displays which differed in amount of information transmitted. Only reaction time increased as a linear function of number of bits in the stimulus display. Both show individual differences which significantly correlated with intelligence. (Author/RD)

The relative contributions of test anxiety and exam-taking skills to information-processing deficits were investigated in a dual-task paradigm comparing high and low test-anxious students with either good or poor exam-taking skills. Sixty-four undergraduate students (21 males, 43 females) were selected based upon pre-test scores on the Test…

Reaction time and movement time were negatively and moderately-to-strongly correlated with Ravens matrices performance and with reading comprehension and performance on the California Test of Basic Skills for 20 ninth-grade girls. Weaker relationships were found for mathematics and English grades, although the direction was consistently negative.…

The cognitive processes in a widely used, non-verbal test of analytic intelligence--the Raven Progressive Matrices Test (J. C. Raven, 1962)--were analyzed. The analysis determined which processes distinguished between higher-scoring and lower-scoring subjects and which processes were common to all subjects and all items on the test. The analysis…