A previous multivariate analysis of variance (MANOVA) study of attitudes toward interactive video (ITV) of participants in distance education had indicated that generalized variance was not homogeneous across all groups. Since heterogeneity of variance in MANOVA has previously been shown to change Type I error rates in unequal group size, detected…

There has been concern in the private school research community that private school diversity is not captured by the three divisions of Catholic, other religious, and non-sectarian. Data from the 1987-88 Schools and Staffing Survey (SASS) are used in this analysis to operationalize a typology that further subdivides each group into the following…

Previous research using various measures of teacher quality has largely failed to investigate the relationships among such assessment measures using multivariate procedures. Multivariate investigations are essential in studies of teacher competence because these methods view various competency variables in the larger contexts to which researchers…

Data from the 1980 and 1982 High School and Beyond Surveys are used to compare the achievement of immigrant and native students in high school. The study examines effects of generation and duration of residence in the United States on improvement in students' performance on standardized tests over a 2-year period beginning with the year the…

This study utilized the concept map, a visual representation of a learner's thought processes, as an assessment tool to evaluate the effects of both bibliographic instruction and Discipline-Based Art Education (DBAE) training on the library skills of elementary art teachers in a visual arts resource center. A 2x2 factorial posttest-only control…

Missing data for a given cohort of students in a longitudinal study occurs for at least two reasons: either the student has moved or otherwise become unavailable for testing, or the cohort was not in the testing range at a given testing time. A developmental sampling for time of testing x cohort x grade research plan of testing is used to…

The use of canonical analysis and multiple discriminant analysis to analyze equity-parity in colleges and universities is assessed and distinguished from multiple regression analysis. Multiple regression analysis forces the variable weights throughout the salary structure to be uniform, permits only one criterion or dependent variable to be…

This study investigated changes in intellectual orientations of 4,124 California high school students who completed the Omnibus Personality Inventory. The three dependent measures of intellectual orientations were Autonomy (which measures independence of thought and judgment), Theoretical Orientation (which reflects an interest in science,…

The effects of various interactive video instructional control options and practice on learning were examined in this study. The interactive video lesson was a 30-minute videotape designed to introduce cardiopulmonary resuscitation (CPR). Subjects were 48 graduate and undergraduate volunteers, none of whom had prior experience with CPR or…

This study probed whether or not a distinctive Down syndrome (DS) pattern could be found in the realm of vocabulary comprehension. Groups of 29 each of DS adolescents, non-DS mentally retarded (MR) adolescents, and nonretarded children were statistically matched on receptive vocabulary ability; DS and MR groups were also matched for chronological…

To clarify numerous points of contention surrounding Elizabeth Noelle-Neumann's spiral of silence theory, according to which individuals' media-influenced perception of their congruence or incongruence with dominant opinion determines their willingness to speak out in public, a study examined the relationship between opinion expression, perceived…

A component analytic method for analyzing multivariate longitudinal data is presented that does not make strong assumptions about the structure of the data. Central to the method are the facts that components are derived as linear composites of the observed or manifest variables and that the components must provide an adequate representation of…

A statistical method has been developed for nested incomplete samples in a longitudinal study in which part of the sample has dropped out in such a way that the data have a nested pattern. A procedure which performed well in a Monte Carlo experiment was extended to a two-factor incomplete design with repeated measures on one factor. Methods…

This paper describes analytical concepts that can be applied to a comprehensive database containing information on students, teachers, and schools. The concepts are presented in terms of displays, potential inferences, and possible difficulties. Statistical techniques are mentioned, but not rigorously developed. Focus is on displays that can be…

Kohn's work on the relationship between social class and parental values was expanded by searching for value dimensions other than Kohn's self-direction/conformity construct and by investigating three aspects of social structure: immigrant status, quality of neighborhood, and housing type. Data were collected from parents of 305 9- to 11-year-old…