A relatively simple procedure for modeling periodic components in time series data is presented in this paper, along with an example of the procedure's use with communication data. Similar to multiple regression analysis, the described procedure has four steps that are based on information about periodic waves and their components, how to create…

This investigation studied the effect of teaching satisfaction and related classroom environmental variables on student evaluations of instruction where the assigned instructor and course subject were held constant over two successive academic terms at a branch campus of a major state university. Scores on two dimensions of teaching, Instructor…

Longitudinal relationships, between two measures of both job performance and job satisfaction over a three-year period, were investigated for 1,352 airmen in eight enlisted Air Force occupational specialties. Cross-lagged panel correlation analyses were compared to conclusions based on an extended multiple linear regression analysis technique.…

The suppressor variable, a variable wholly uncorrelated with a criterion, but which nevertheless improves prediction because of its relationship with a predictor, is critically examined. For a suppressor so defined, formal identities are shown with part, partial, and multiple correlational procedures. It is demonstrated that if maximum prediction…

Change Group Analysis is suggested as a technique for examining the correlates of the differential effects of a compensatory education program within the group of enrolled pupils. It is based on using pretest-posttest relative changes for forming criterion groups and then using multiple disciminant analysis to uncover patterns of predictor…

The purposes of this study were (1) to provide an objective description of the supervisor-teacher conference behavior in a micro-teaching situation, (2) to determine the combinations of teacher and supervisor characteristics that predict conference behavior and conference effectiveness, and (3) to determine the supervisor characteristics that…

Creative products submitted in response to a contest were examined to discover whether creativity was related to the sex and socioeconomic status of the respondent and whether characteristics of the objects could be specified which would predict their level of rated creativity. No sex difference was found, but socioeconomic status was…

The study focused on the income in agricultural jobs, in nonagricultural jobs, and in total for Puerto Rican, white, and black farm workers who worked at least parttime in New Jersey. Objectives were to examine income differences between and within the three groups, and to pinpoint some of the socioeconomic characteristics that are important in…

Although there have been numerous studies of the reliability, validity, and uses of student ratings of instruction, relatively few efforts have focused on the association of the combination of various student, instructor, and course characteristics in relation to such ratings. The purpose of this paper is to examine the relationship between…

Describes a study that used multiple regression analysis to examine whether the apparent influence of sex discrimination on librarians' salaries would be reduced if other factors were considered. The effects of education, employment level, and publications on librarian salaries are discussed, and three approaches to achieving comparable worth are…

The relationship between 13 demographic social variables and the numbers of students placed in four objective and four subjective special education classifications for one school year was examined using 50 states and Washington, DC. None of the objective, but two of the subjective classifications were strongly associated with socioeconomic…

Multiple regression analyses were employed to determine the relationships between achievement variables as predictors of the performance on the National Board of Medical Examiners examinations of medical students. Score averages were added to a composite Medical College Admission Test to investigate the increases in prediction accuracy.…

The purpose of this study was to investigate the potential viability of the variable certification by the National Board for Professional Teaching Standards (NBPTS) as a policy-relevant predictor of student achievement. Because research has identified the teacher as the most important school-related predictor of student achievement, more research…

Reviews several potential problems that often invalidate statistical tests of social theories. Discusses how there may be very serious identification problems in the estimation of the relationship between executions and homicides, and that serious questions may be raised regarding the validity of any particular estimation of this relationship.…

Examines factors that are predictors of parental mediation and rulemaking for adolescent use of videocassette recorders (VCRs) and television. A study is described that explored the relationship of socio-demographic family patterns, media exposure, and access factors related to mediation among seventh and tenth graders, and results are compared…