Qualitative comparative analysis (QCA) is an empirical research method that has gained some popularity in the social sciences. At the same time, the literature has long been convinced that QCA is prone to committing causal fallacies when confronted with non-causal data. More specifically, beyond a certain case-to-factor ratio, the method is…

Citations of 23 old papers in physics and physical chemistry were studied in 978 papers in which they appeared in 1974-1975. Using a new typology of reasons for citing the papers, it was determined that in about 60 percent of the cases, the papers are still being actively used. (Author/MBR)

Bias effect was mainly accounted for by male experimenters testing subjects under conditions of nonautomated stimulus presentation and by female experimenters testing subjects under automated conditions. (Authors)

First purpose of this study was to investigate empirically the accuracy of prediction using regression weights selected through the use of variance-reduction procedures. (Author)

Describes a study conducted in 1988 that investigated book availability in an academic library by providing a quantitative measure of library performance based on outcomes of card catalog searches and that can serve as a model for ongoing assessment in the library. Results are compared with earlier research from 1986. (Contains 12 references.)…

Presents five simulation models reflecting sequential levels of children's simple arithmetic story problem solving skills. Outputs of the models are compared with data obtained by presenting 60 five- to eight-year-olds with change problems to examine models' deterministic nature. Results indicate the models give an adequate description of behavior…

This study tests three aspects of the problem of validity of contrastive analysis as a means for predicting errors or problems for second language learners: the constancy of foreign-language errors, the objectivity of the methods and procedures of contrastive analysis, and the capacity of contrastive analysis to make accurate predictions. Japanese…