The purpose of this study was to ascertain whether or not the whole method or the part method of solving orthographic projection problems made any significant difference in student performance scores, and more specifically, to ascertain the relative effectiveness of these two approaches on seven criterion variables. The research design was…

By utilizing reinforcing and punishing light cues the verbal output and leadership status of Target Ss in a four-person group was manipulated. There were three conditions: Control (no light cues used); Agree, where Non-Target Ss were reinforced for agreeing with the Target, and punished for all other verbalizations; and Disagree, where Non-Target…

The aims of this study were to: (1) investigate the effectiveness of teaching machines in teaching vocabulary, (2) examine the relationships between various anxiety levels and the effectiveness of the teaching machine and the relationships between extroversion and introversion and the effectiveness of the machine, and (3) examine the possible…

This study assessed the effectiveness of five hours of distributed training on three-year-old children's comprehension and production of the passive, negative, possessive and negative passive syntactic structures. A comprehension test identified 20 children who did not evidence understanding of these structures. Subject were randomly assigned to…

The problem investigated in this study was: What changes in the culturally disadvantaged pupils' oral language development will result when pupils are provided a program which includes daily verbal interaction with their teacher focused on a variety of pupils' experiences, interests and needs? The subjects of this study were randomly selected from…

This article considers various kinds of probability and non-probability samples in both experimental and survey studies. Throughout, how a sample is chosen is stressed. Size alone is not the determining consideration in sample selection. Good samples do not occur by accident; they are the result of a careful design. (Author/JAZ)

The purpose of this study was to determine the effectiveness of computer-assisted instruction (CAI) versus traditional lecture-type instruction on triangles. Two quasi experiments were conducted in six 6th grade classes with a total of 108 students respectively. The students in the control groups were taught the concepts of triangles in their…

This is a checklist of key items to get right when conducting a randomized controlled trial to evaluate an educational program or practice ("intervention"). It is intended as a practical resource for researchers and sponsors of research, describing items that are often critical to the success of a randomized controlled trial. A significant…

The hierarchical and impersonal university makes it difficult, if not impossible, for trust to be established in the microcosm of the classroom." Author describes how a literature class he taught at State University of New York at Buffalo evolved into an experimental one in which the group itself was the subject, and trust was established.…

The relationship of learning to organization of stimuli is explored. (CK)

A verbal and a perceptual test of gender constancy were administered to 26 four- to six-year olds. The majority of the children answered questions as if referring to a "pretend" rather than "real" situation, which decreased scores of gender constancy on both tests. (AOS)

Discusses ANOVA (Analysis of Variance) designs with nested factors as an option for addressing unit of analysis issues when conducting group research. These principles can be extended to more complex designs involving multiple treatment factors where groups are either nested or crossed with these factors. (Author/TE)