Selected examples using the statistical packages Statistical Package for the Social Sciences (SPSS), the Statistical Analysis System (SAS), and BMDP are presented to facilitate their use and encourage appropriate uses in: (1) a hierarchical design; (2) a confounded factorial design; and (3) variance component estimation procedures. To illustrate…

Three alternative solutions available for analysis of variance (ANOVA) using two-way and three-way completely randomized factorial designs with disproportional cell sizes across all two-way and three-way summary tables with no empty cells are discussed. These solutions are categorized as unique, sequential, and experimental. The procedures used,…

The objective of this investigation was to take a small data set that represents unbalanced factorial designs and explain by example how the variance is partitioned when using the various options from the Statistical Package for the Social Sciences (SPSSX) and Statistical Analysis System (SAS). That the unequal cell size analysis of variance…

Some of the issues regarding the estimation of reliability for performance assessments are explored, and a methodology is suggested for determination of reliability. In performance assessment, the magnitude of the reliability coefficient may be less than that obtained for a standardized test, since part of the potential use of performance…

The Exstatix statistical analysis software package by K. C. Killion for use with Macintosh computers is evaluated. In evaluating the package, the framework developed by C. J. Ansorge et al. (1986) was used. This framework encompasses features such as transportability of files, compatibility of files with other Macintosh software, and ability to…

A study investigated the effects of interactive CD-ROM software on children's reading comprehension. It explored whether 31 fourth-grade children in an elementary school in a suburban school district in the Midwest comprehended narratives better when reading from the printed page or from the same text displayed by the computer. One class read each…

What a multivariate contrast analysis should entail and how such an analysis should be conducted are discussed. The three questions encompassing a contrast analysis are: (1) whether the contrast effects are generalizable; (2) which variables contribute most to the contrast effects; and (3) what is the construct underlying the contrast effects.…

To investigate what children learn during computer programming instruction, students attending a summer computer camp were asked to recall either single lines or chunks of computer programs from either coherent or scrambled programs. The 16 subjects, ages 12 to 17, were divided into three instructional groups: (1) beginners, who were taught to…

Political communication researchers recently have emphasized conditional relationships as crucial to specifying and understanding the effects of the mass media. In many cases, however, researchers will not predict which variables will modify the form or existence of media effects. They therefore will not include measures of the conditional…

This study explores a relatively new area of computer research, i.e., utilization of computer-generated feedback based upon the knowledge gained in both written and computer-based instruction. One hundred and twenty-six freshmen and sophomore college students from a variety of academic majors volunteered for this study. The instructional materials…

The purpose of this study was to adapt the Hidden Figures Test (a measure of field dependence/independence) to microcomputer display and to assess its alternate form reliability when compared to a paper and pencil test. Participants included 58 undergraduate and graduate students (91.4% female) at a southeastern university who were fairly normal…