A computer program for two-group nonparametric discriminant analysis is presented. Based on Bayes' Theorem for probability revision, the statistical rationale for this program uses the calculation of maximum likelihood estimates of group membership. The program compares the Bayesian procedure to the standard Linear Discriminant Function.…

A computer program is described that constructs and visually displays isodensity ellipses of a bivariate normal distribution for a maximum number of 100 pairs of values. The numbers of actual points within the ellipses can be compared with the theoretically expected frequencies by a chi-square analysis. (Author)

A computer program is described which performs the Bowker test of symmetry in a square contingency table, the Light-Margolin and Pearson tests for homogeneity in nonorder contingency tables, the Kruskal-Wallis test for ordered dependent variables, and the Kandall and Maxwell tests for monotonic trends in ranks. (Author)

A Fortran Extended program which computes Goodman and Kruskal's Tau-b, its asymmetrical counterpart, Tau-a, and three sets of confidence limits for each coefficient under full multinomial and proportional stratified sampling is presented. A correction of an error in the calculation of the large sample standard error of Tau-b is discussed.…

A Fortran IV multiple choice test scoring program for an IBM 370 computer is described that computes minimally acceptable performance levels and compares student scores to these levels. The program accomodates up to 500 items with no more than nine alternatives from a group of examinees numbering less than 10,000. (Author)

Internal consistency as one rationale for item selection from the unverse of possible test items is discussed and formulae are presented which relate the maximum internal consistency of a test to the largest eigenvalue of the interitem correlation matrix. A computer program to perform these calculations is presented. (Author/JKS)

A computer program which computes both the interjudge reliability of individual measurements and the extent to which the judges are biased in their ratings vis-a-vis each other is presented. The methods proposed are recommended on the basis of recent developments in statistical research. (Author/JKS)

A round-robin experiment involves observation of all possible pairs of subjects within each experimental condition. A program is described which performs analyses of variance for such data. Output includes an ANOVA summary table, exact or quasi-F statistics for tests of various hypotheses, and least squares estimates of relevant parameters.…

A microcomputer program for two-way analysis of variance is described. Both the program and cell entries are stored on tape. Output consists of both intermediate and final products. Advantages and limitations of the program are discussed; the program cannot handle nested or mixed designs. (Author/JKS)

A microcomputer program using a tape unit for multiplying two matrices as large as 41 x 42 apiece is presented. Advantages and limitations are discussed. A verbal description of the logic is presented to facilitate the use of the program on different brands of computers. (Author/JKS)

The ability of respondents to properly execute Thurstone scaling procedures as opposed to Likert scaling procedures was investigated in a sample of high school students. Results indicate difficulty among respondents using Thurstone-type instructions to resist giving Likert-type responses. (JKS)

An efficient algorithm for maximizing split-half reliability coefficients is described. Coefficients derived by the algorithm were found to be generally larger than odd-even split-half coefficients or other internal consistency measures and nearly as large as the largest split half coefficients. MSPLIT, Odd-Even, and Kuder-Richardson-20…

Confusion in the literature between the concepts of internal consistency and homogeneity has led to a misuse of coefficient alpha as an index of item homogeneity. This misuse is discussed and several indices of item homogeneity derived from the model of common factor analysis are offered as alternatives. (Author/JKS)

The G index of agreement does not permit the use of various weights for its various items. The weighted G index described here, make it possible to use unequal weights. An example of the procedure is provided. (Author/JKS)

A statistic for testing monotonic trend that has been presented in the literature is shown not to be the binomial random variable it is contended to be, but rather it is linearly related to Kendall's tau statistic. (JKS)