An approximate statistical test is derived for the hypothesis that the intraclass reliability coefficients associated with two measurement procedures are equal. Control of Type 1 error is investigated by comparing empirical sampling distributions of the test statistic with its derived theoretical distribution. A numerical illustration is…

Assessed hypothesis testing strategies of 65 counseling trainees who viewed and responded to videotaped client-counselor interaction for both client-identified and counselor self-generated hypothesis about client's problem. Results for client-identified hypotheses failed to support strong neutral hypothesis testing strategy or predicted…

Discussion of computer-mediated communication (CMC) focuses on a study that examined the similarity between computer bulletin board users' perceptions of individuals from whom they received messages and the users' perceptions of the computer itself. Hypotheses tested are explained, mechanomorphism is discussed, and implications of the findings for…

Presents a report originally published in 1992 describing the organizational phase of a digitizing project at the Yale University Library that planned to convert material from microfilm to digital image form. Working hypotheses are explained; and the vendor selection process is reviewed, including technical components, design principles, and…

Three experiments examined four- through seven-year-olds' understanding of the role of covariation evidence in hypothesis formation. Found that by age six most children understood how evidence would lead a story character to form a hypothesis different from the child's own hypothesis. (MDM)

A model is presented for multiple pairwise comparisons of selected categories (cells) of a contingency table after the chi-square test has rejected the null hypothesis of equality of population proportions. The model determines which, if any, pairwise proportions have led to the rejection. (SLD)

Provides a comparison of centered and raw-score analyses in least squares regression. The two methods are demonstrated with constructed data in a Monte Carlo study to be equivalent, yielding identical hypothesis tests associated with the moderation effect and regression equations that are functionally equivalent. (SLD)

Outlines concerns that must be addressed by those who advocate replacing statistical hypothesis-testing with alternative data-analysis strategies. Suggests that commonly recommended alternatives are not perfect and that various hypothesis-testing modifications can be implemented to make the process and its conclusions more credible. Hypothesis…

Philosophers' attempts to convincingly explicate the received view of an ad hoc hypothesis--that it accounts for only the observations it was designed to account for--have been unsuccessful. Familiar and firmer criteria for evaluating the hypotheses or modified theories so classified are characteristically available. Contains 41 references.…

Discusses two criticisms raised by L. Hayduk and D. Glaser of the most commonly used point estimate of the Root Mean Square Error (RMSEA) and points out misconceptions in their discussion. Although there are apparent flaws in their arguments, the RMSEA is open to question for several other reasons. (SLD)

Review states that the book gives an examination of the null-hypothesis significance test procedure as an integral component of data analysis of quantitative research studies in the social sciences. It is designed for the nonmathematics student who will be doing empirical studies involving the testing of substantive hypotheses. (SLD)

Evaluated the contribution of rule, exemplar, fragment, and episodic knowledge in artificial grammar learning using memorization versus hypothesis testing training tasks in 5 experiments involving a total of 163 college students. There was no evidence that memorization led to abstraction of rules or encoding of whole exemplars. Results support an…

Reports results of a study that was designed to empirically verify a system dynamics model that represents the relationship between dialog and structure as they relate to transactional distance and distance education. Topics discussed include discourse analysis; other variables relating to transactional distance; developing a prototype; and future…

Describes a laboratory study that examined the extent to which group gender composition affected group brainstorming performance in a computerized group support system (GSS) environment. Theory and research related to group gender composition and GSS is reviewed, and results indicate that gender composition did not affect group brainstorming…

Demonstrates the use of the well-known Bayes factor in the Bayesian literature for hypothesis testing and model comparison in general two-level structural equation models. Shows that the proposed method is flexible and can be applied to situations with a wide variety of nonnested models. (SLD)