An approach to the analysis of an aptitude-treatment-interaction (ATI) design in which the treatment groups are based on an underlying factorial structure is described and illustrated. The approach emphasizes description with point and interval estimation. The example design considered consisted of two nominal treatment variables and one interval…

Research was conducted on pilot stress during simulated emergency flight conditions. Catecholamine (adrenaline and non-adrenaline) secretion for twenty United States Air Force student pilots and thirteen instructor pilots was determined during daily activities, during simulated flights performed in high realism simulators, and during actual…

The experiment studied the "relative effectiveness of tangible and social rewards upon the performance of a simple discrimination learning task by culturally disadvantaged children." Also assessed were the effects of the sex of the subjects (Ss) and the examiner. Ss were 144 five- and six-year old youngsters in a Georgia Head Start…

The purpose of this study was to determine the efficacy of induced affect as a pregroup training experience for coping with stress related to participation in an encounter group. Twenty-six subjects who volunteered to participate in an encounter group randomly were assigned to three treatment groups: Induced Affect Training plus the Encounter…

Experimental hypotheses are proposed which assert (1) that "thought" and "language" are distinct but both are part of linguistic performance; (2) that "thought" is central, and "language" is a symbolic system that one uses to refer in various ways to what he thinks; and (3) that immediate memory works with utterances and linguistic texts over a…

Research concerned with the compensatory education of disadvantaged children points to language deprivation as a primary causative factor in the "cumulative deficit" in education and school failure of these children. From a psycholinguistic framework, a method was devised to teach some of the essential linguistic skills in a short intensive…

The Cooperative Extension faculty in Ohio established a correspondence course for new 4-H leaders. The course included topics designed to meet the most significant needs of the leaders. This study had as its objectives: (1) to evaluate the effectiveness of the course by determining whether knowledge about 4-H and desirable practices performed in…

The feasibility of offering, on a voluntary, no credit basis, a programmed audio-tutorial instruction approach to the listening skills was investigated; and the extent to which these materials meet the listening needs of students was studied. Two groups of 22 and 20 students at a state university were chosen randomly from volunteers. The…

The purpose of this study was to determine what effect peer learning among American Indian children had with regard to: learning mathematical skills; developing student attitudes toward mathematics; and developing satisfaction reactions or attitudes with the process of peer learning. Results indicated significant improvement among 6th grade…

The ethical dilemma of (a) desiring a control group for validity purposes in program evaluation strategies and (b) withholding needed services from eligible clients to achieve such control has limited the credibility of many evaluation efforts. A potential solution is suggested by the use of time-series, single-subject designs. (Author)

The paper summarizes and presents counter arguments against positions claiming that randomized experiments in early childhood are unnecessary, impractical, or unethical. It is concluded that more frequent use of randomized experiments in early childhood special education would provide more effective program evaluation data for resource allocation…

The question studied was whether opinions of persons interviewed about educational interests and perceived needs at randomly selected geographic locations in a metropolitan area differed from those of three other persons living in the immediate vicinity. With few significant exceptions, no statistically significant differences were found between…

This study examined those characteristics of a sequence to which children respond when they are presented with partially learnable sequences followed by a series of trials on which all responses are correct. (Author/RK)

Author, who teaches psychology at Wesleyan University, discusses the differences in approach to teaching of the traditionalist" teacher and the teacher concerned with experiments in which emotions and life relevance play a central part." (Author/DR)

Author describes an experimental unit, the Utopia Project, given in the College of Basic Studies at Boston University, and shows how it works with examples of actual projects undertaken by students. (DR)