Of particular interest to generalizability theory strategies is a relationship showing that integrated design variance components not involving attributes are identical with the average respective covariance components across attributes. An illustration is provided to demonstrate the relationships, strengths, and weaknesses of two strategies.…

Notes that the availability of statistical software packages has led to a sharp increase in use of complex research designs and complex statistical analyses in communication research. Reports a series of Monte Carlo simulations which demonstrate that this complexity may come at a heavier cost than many communication researchers realize. Warns…

Describes study that investigated the effects of computerized test administration on undergraduates' responses to the Minnesota Multiphasic Personality Inventory (MMPI), and discusses methodological considerations important in evaluating the sensitivity of personality inventories in different administration formats. Results analyze the effects of…

The S-R Inventory of Anxiousness was developed as an experimental design to demonstrate the relative contributions of persons, situations, modes of response, and their interactions to individual differences in anxiety. College students in three studies were asked to rate a total of 154 items, involving 14 modes of response (physiological or overt…

In studies of the relationship between masculinity-femininity and intelligence, data should be analyzed using correlational analysis for the complete distribution, rather than analysis of variance of extreme groups. The earlier work of Baucom and Welsh (EJ 171 822) was used as illustration. (BW)

Humphreys' criticisms (TM 503 269) of the work of Welsh and Baucom (EJ 171 822) are inappropriate since his findings are based upon a different measure of masculinity-femininity and a population which is somewhat different. Also, his insistence on correlational analysis to the exclusion of extreme group design is viewed as inappropriately…

A Type VI error results from inconsistency between the researchers' question of interest and the statistical procedures employed to analyze the data. An example of a research problem is analyzed to show the increase in statistical power resulting from improved research design, using multiple regression instead of analysis of variance. (CTM)

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…

To test the usefulness of single subject statistical designs for biofeedback, three experiments were conducted comparing biofeedback to meditation, and to a compound stimulus recognition task. In a statistical sense, this experimental design is best described as one experiment with two replications. The apparatus for each of the three experiments…

This paper provides an understanding of the conceptual and operational relationships between evaluation, content analysis, and microcomputers so that evaluation practitioners can better address applied content analysis problems used in their work. The first section presents a general model for conducting an evaluation effort that focuses on…

Freshman botany students, graduate students, and student library assistants participated in a study to determine the effectiveness of a self-paced workbook on learning library skills in searching science literature and to determine staff and funding requirements to run larger scale instructional programs. The botany students comprised four groups.…

The Myers-Briggs Type Indicator (MBTI) Extraversion-Introversion scale was compared with the Minnesota Multiphasic Personality Inventory (MMPI) 0 scale (Social Introversion) for 18 male and 66 female adult students in introductory courses in psychology, aged 17 to 83 years. A status survey design was used with a priori and post hoc groupings.…

Student library assistants and undergraduate and graduate students from agricultural and biological engineering, biological sciences, and entomology participated in a study to determine the effectiveness of instructional materials adapted to specific science disciplines for developing practical skills in the use of library resources. All students…

This book in intended to train students in reading a research report critically. It uses actual research articles as examples including both good and flawed studies in each category and provides interpretation and evaluation of the appropriateness of the statistical analyses in each study. Individual chapters usually include two sample studies and…

Describes a study using self-report measures of students' responses to auditory and visual stimuli to measure distractibility in task performance among 224 Canadian undergraduates. Findings show the absence of any link between self-reported distractibility and actual performance. Study shows correlations between personality type and…