The applicability of a mathematical theorem designed to trace causality of a three-variable path that consists of an initial cause variable, an intermediate variable, and a final-effect variable with control over other system variables is evaluated. The formula was used with a horizontal rather than a normal distribution, as had been done in an…

Methods exist for testing the homogeneity of group regression for the case in which there is only one predictor. Studies which have investigated aptitude-treatment interactions have adopted the homogeneity of regressions test as standard methodology for assessing the difference in regression slopes across treatments. Additional statistical…

Equations are derived to enable the graphic approximation of the item parameters of the stochastic mental test models, i.e., the generalized normal ogive and logistic models. The item parameters for the models are discriminatory power, difficulty, and probability of chance success. Suggested uses for the approximations were to provide a basis for…

Some oral reading errors were found to be more significant than others in evaluating a pupil's performance in reading at six comprehension levels. The percentage of seven kinds of errors (pronunciation, mispronunciation, omission, substitution, addition, repetition, and punctuation) was computed to the levels of reading comprehension for good,…

As an outgrowth of a previous study by Roth and others, "Environmental Management Concepts--A List," ED 045 376, this study attempts to determine if there is significant correlation in the taxonomic ranking of selected environmental management concepts as reported by Roth and the ranking of these concepts by teachers of students in grades K-8 for…

Twenty-four expenditure variables were correlated with achievement scores on the Iowa Test of Educational Development to find out how various types of expenditures were related to educational quality. The expenditure variables (instructional cost, operating cost less transportation, and total costs) were used as numerators in a fraction. The…

A study was conducted to determine the appropriateness of the Concept Mastery Test for graduate students enrolled in an introductory research methodology course. Ss represented a cross-section of students entering a master's program at a large southeastern university. The Concept Mastery Test (CMT), the Nelson-Denny Reading Test (ND), and the…

Checking of parametric assumptions is an often ignored step in the inferential process. A misconception regarding symmetry (one aspect of "robustness") is prevalent: that in nonsymmetric distributions the mean and median are always non-coincidental. It is to this fallacious point that the discussion is directed. A generally accepted index of…

In this study, individual differences in internal-external control were expected to relate to several aspects of romantic, hetrosexual love. For example, it was hypothesized that proportionally fewer internals experience romantic attachments. Moreover, among persons having been in love, internals were expected to have fewer romantic experiences…

During the past decade both the Guilford and Torrence groups have developed numerable measures to assess creative potential. Many of these measures purport to evaluate "creativity" but one element seems to be lacking in each: i.e., the last of "reality-based, real world measures" which would allow relevant response tendencies…

Efficient search of items in a store of information, such as books in a library, abstracts of articles, information in a computer data bank or the like, requires that the items most closely connected in content be close together, in order that a person looking for some particular information may concentrate his search on as small a part of the…

A scaling technique known as the Method of Reciprocal Averages has been in use since the early 1930's. This technique yields a set of item response weights for a psychological inventory which maximizes the internal consistency of the inventory for a group of subjects. Although the technique has been used for many years, its mathematical…

Five three-variable combinations were obtained from a variety of standardized test scores of 331 male children. These five groups were treated as unrestricted populations of the case III variety. Extreme univariate selection was produced in each group allowing for tests of differences between the correlation values of the two incidental variables…

Due to the small samples and variance of the Tests of General Educational Development (GED) requirements in the reported research, it is difficult to generalize the obtained results in counseling situations. It is the purpose of this study to set up multiple cutoff norms for the General Aptitude Test Battery (GATB) using the statistical techniques…

College Level Examination Program (CLEP) Tests were normed on a national basis, administering the test to nationwide samples of subjects. Norms appear in the booklet, CLEP Scores: Interpretation and Use, and consist of the test score means for groups of students receiving grades of A, B, C, D, and F in the relevant course, the proportion of…