THIS STUDY ASSESSES THE EFFECTS OF ORTHOKINETIC SEGMENTS UPON THE MOTOR RESPONSES OF NORMAL MALE COLLEGE STUDENTS PERFORMING THE VERTICAL JUMP AND THE STANDING BROAD JUMP. THE VARIOUS PLACINGS OF THE ELASTIC AND INELASTIC FIELDS OF THE SEGMENTS UPON THE AGONIST AND ANTAGONIST THIGH MUSCLES OF STUDENTS WERE NOTED AND COMPARED WITH PERFORMANCE…

THIS STUDY WAS AN EXPERIMENTAL INVESTIGATION OF THE EFFECTS OF AN ENRICHMENT PROGRAM ON A SELECTED GROUP OF FIRST GRADERS. ITS PURPOSE WAS TO DETERMINE WHETHER CHILDREN EXPERIENCING THE EXPERIMENTAL CONDITIONS SHOWED GREATER GROWTH IN INTELLIGENCE AND ACHIEVEMENT AND GREATER USE OF FUNCTIONAL LANGUAGE THAN A CONTROL GROUP AT THE END OF ONE SCHOOL…

The data reported here were gathered in three ethnographic studies in different research settings: a single school, school district, and research center/school district team. These longitudinal studies incorporated the use of ethnography for purposes of collecting data about classroom teachers, principals, staff developers, central office…

One method for teaching young people how to interpret literature was defined, and the effects of that method on the responses of ninth grade students to selected short stories were measured. Four English teachers and their 94 students were randomly assigned to two experimental and two control classes. Eight short stories were read during three and…

Research literature regarding the aptitude treatment interaction (ATI) model of research is reviewed, and arguments for and against the use of the model are described. The purpose of the model is to allow a combination of desired properties of experimental and correlational methods. It yields disordinal interactions when experimental situations…

The Dunnett procedure for comparing several treatment means with a control is applied to the problem of comparing several treatment variances with the variance of a control. Appropriate critical values are specified and an example is provided. (Author)

A specific form of nonrandom assignment to treatment groups, the "alternate ranks" design, was investigated. This design eliminates the possibility of a correlation between the covariate and the treatment, and rules out experimenter bias in assignment of subjects to groups. (Editor)

Modeling the process by which participants are selected into groups, rather than adjusting for preexisting group differences, provides the basis for several new approaches to the analysis of data from nonrandomized studies. Econometric approaches, the propensity scores approach, and the relative assignment variable approach to the modeling of…

Explains the characteristics and importance of random assignment in experimental research on education. Considers factors supporting causal inferences, the nature of "assignment units," differences between random sampling and random assignment, the characteristics of randomization tests, forms of random assignment, and effects of experimental…

The use of large-N group comparison research methods based on a nomothetic model is compared with idiographic methods employing single-system designs and intensive study of the individual. Limitations of the nomothetic model and advantages of the idiographic approach are presented. (SK)

Presents an analytical model for differentiating true clients from applicants in clinical social work practice. Society and the professions, and individuals and primary groups are discussed as structural determinants of clienthood. Social work practice is described as consisting of two major divisions: socialization and treatment. (NRB)

Author, who directs The Literary Imagination", a freshman English course at Carnegie-Mellon, describes two experimental, student-directed English courses he helped establish for freshmen, and the reasons for the apparent failure of these courses. (DR)

Citing schools' neglect of avant-garde composers like John Cage and others, author notes satisfaction pupils can get from music which allows performers to be creative too. Among methods suggested are composing from pictorial notation, open-end compositions, improvising with suggested elements," such as high loud chord with five tones." (PD)