In introductory statistics courses, the concept of power is usually presented in the context of testing hypotheses about the population mean. We instead propose an exercise that uses a binomial probability table to introduce the idea of power in the context of testing a population proportion. (Contains 2 tables, and 2 figures.)

Education in Africa is studied. (CK)

Tests Ausubel's (1960) subsumption theory of learning in the context of children's use of causal and logical connectives. Predicts that the acquisition of prior cognitive structure organizers would facilitate the learning and retention of subsequently presented concepts and logical operations and lead to a decrease of syncretic reasoning and…

This research compares the effectiveness in fostering the development of concept formation skills, of exposure for periods ranging from three to six years to two different methods of teaching mathematics to primary school children, one method (Z. P. Dienes) of the general "discovery" type, the other (H. Fletcher) of the…

A lab study was conducted to test the effect of different kinds of instruction in copying tasks, which are considered to be a fundamental function in the area of psycho-motor skills. The study was organized as a two-way design with 24 eight-year-old Ss. (Editor)

Thirty-nine normal pre-school and 48 older mentally handicapped children of similar vocabulary age were tested on a sentence comprehension test under three different presentation conditions. Results showed that presentation conditions did not affect normal children, but mentally handicapped children were adversely affected by the condition in…

This study examined the effects of organizational control strategies on the teacher's instructional role. It was hypothesized that the teacher's instructional role would be affected by his or her background such as sex, discipline, experience and tenure status as well. (Author/RK)

To gather data on the effects of different modes of instruction on physician achievement in plotting mean P, O, RS, and T receptiors in electrocardiography, researchers chose a random sample of physicians who had taken a correspondence course on electrocardiography during the previous 5 years from the University of Southern California School of…

This study was conducted to determine whether young children, given the experience of Logo programming, would acquire problem-solving skills and be able to transfer those skills to other areas. The study also investigated Logo's effectiveness in teaching certain fundamental geometric concepts to children who were supposedly not developmentally…

A study was conducted to determine the effectiveness of interactive video in teaching study skills and to discover: (1) the overall attitudes of students toward computer-directed instruction (CDI) as compared to traditional teaching methods; (2) whether two groups, instructed via CDI and traditional methods, differed significantly in knowledge of…

To examine the role of elaborations in learning a procedural skill (i.e., using a personal computer) from an instructional text, 88 members of the Carnegie-Mellon University community (students, faculty, and staff members) participated in two experiments. Experimental sessions consisted of a reading period followed by a task performance period in…

Evaluated two training methods that might be used to increase Mandarin adults' accuracy in identifying final /t/ and /d/ as stops in English. Results indicate that the effects of training generalized to words that were not used in training, and subjects maintained the effects of same/different training better than those of identification training.…

Comparative research was conducted using gifted and average upper elementary and junior high school students to determine the effectiveness of utilizing microcomputers for the development of computer literacy and the implementation of curriculum courseware. Eighty students were selected as the treatment group and received instruction in the…