Minkowski distances are used to indicate similarity of two vectors in an N-dimensional space. How to compute the probability function, the expectation, and the variance for Minkowski distances and the special cases City-block distance and Euclidean distance. Critical values for tests of significance are presented in tables. (SLD)

Considers relationship between statistically and clinically significant change. Sees Jacobson and Truax's index of clinically significant change as neglecting possible confounding of improvement rate estimates by regression to the mean. Describes alternative method (Edwards-Nunnally method) that incorporates an adjustment that minimizes this…

Describes MINSIZE, an MS-DOS computer program that permits the user to determine the minimum sample size needed for the results of a given analysis to be statistically significant. Program applications for statistical significance tests are presented and illustrated. (SLD)

Illustrates and compares three alternative procedures to adjust significance levels for multiplicity: (1) the traditional Bonferroni technique; (2) a sequential Bonferroni technique; and (3) a sequential approach to control the false discovery rate proposed by Y. Benjamini and Y. Hochberg (1995). Explains advantages of the Benjamini and Hochberg…

Reviews some of the criticisms of contemporary practice regarding the use of statistical tests. Presents a brief overview of effect indices. Reviews related practices within seven volumes of "School Psychology Quarterly." Results show that contemporary authors continue to use and interpret statistical significance tests inappropriately. Explores…

Computational and plotting problems are often encountered with the Johnson-Neyman analysis of covariance procedure (P. Johnson and J. Neyman, 1936) when using three covariates. Use of an appropriate design and contrast matrix for the general linear model and the Mathematica software system to overcome these problems is described. (SLD)

Drawing on papers by the statistician Robert Matthews, this article questions the standard formula for tests of significance used to validate research results, returning instead to the theorem proposed by Thomas Bayes in the eighteenth century, which starts with a subjective assessment of plausibility. (Author/DB)

Objective: There are no published placebo-controlled studies of any agent in the treatment of acute mania in children or adolescents. This is the first placebo-controlled study of lithium's efficacy in the treatment of acute mania in adolescents. Method: In this discontinuation study, participants received open treatment with lithium at…

The APA Task Force on Statistical Inference recently recommended reporting effect sizes alongside results of statistical significance tests. The purpose of this article is to investigate effect size usage in gifted education research and to follow up on a similar investigation published by Plucker (1997). A content analysis of effect size…

This dissertation explored the relationships among three variables: meaning, moral reasoning, and diversity competencies. The relationships were examined to attempt explaining two central themes: professional citizenship and otherness leadership. A sampling of graduate students from business and education colleges at a Midwestern public…

The authors examined an association between mathematical content in college-level curricula and beginning salaries of graduating students on the basis of data collected from a public university in the southern region of the United States. The authors classified the mathematical content requirements of the curricula into the following 5 groups…

The objective of this paper is to determine the extent to which business majors' attitudes towards globalization are influenced by the area of selected study. Research has documented that more favorable attitudes towards globalization are found among college students, and specifically, these more favorable attitudes are found in business majors.…

Several cognitive motivational scales were examined for their ability to predict short-range academic outcomes (grades, percentage of units earned over units attempted, units earned), and to measure cognitive gains as a consequence of services provided by community college counseling offices. The findings suggest that scales measuring…

This paper is a report of the Australian segment of an international multi-campus project centred on improving understanding of the Moon's phases for preservice teachers. Instructional strategies adopted for a science education subject enabled Australian participants to make extended observations of the Moon's phases and keep observational data…

Although the "efficacy" of Intensive Behavioral Intervention (IBI) for young children with Autism Spectrum Disorders (ASD) has been well documented in small model programs, IBI's "effectiveness" (i.e., does it work in the "real world"?) has been less studied and may not be as impressive, e.g. Bibby, Eikeseth, Martin,…