Measures of agreement are used in a wide range of behavioral, biomedical, psychosocial, and health-care related research to assess reliability of diagnostic test, psychometric properties of instrument, fidelity of psychosocial intervention, and accuracy of proxy outcome. The concordance correlation coefficient (CCC) is a popular measure of…

Previous research on dual-tasks has shown that, under some circumstances, actions impair the perception of action-consistent stimuli, whereas, under other conditions, actions facilitate the perception of action-consistent stimuli. We propose a new model to reconcile these contrasting findings. The planning and control model (PCM) of motorvisual…

Correlational analyses are one of the most popular quantitative methods, yet also one of the mostly frequently misused methods in social and behavioral research, especially when analyzing ordinal data from Likert or other rating scales. Although several correlational analysis options have been developed for ordinal data, there seems to be a lack…

An obstacle to broader acceptability of effect sizes in single case research is their lack of intuitive and useful interpretations. Interpreting Cohen's d as "standard deviation units difference" and R[superscript 2] as "percent of variance accounted for" do not resound with most visual analysts. In fact, the only comparative analysis widely…

Five questionnaires were administered to a group of subjects on two separate occasions. The principal concerns were the following: (1) to find evidence for the existence of stable (i.e., over testings) circular triads, (2) To investigate the appropriateness of the additive difference model, if such stable circularities are found, and (3) If such…

The relation between maternal presence and infant's vocalization depended upon the infant's state: when the infant was in the active awake state, he vocalized less in the presence of the mother than when alone, thus indicating that the majority of early vocalizations are associated with a non-social situation. (Authors/RY)

This paper is an ardent plea for simplifying experimental design and the associated statistics. The emphasis is on design itself. Traditional designs from simple to complex and reviewed and the simplest, most basic ways of handling the data are presented. Design is stressed in such a way that simple statistics follow. The intactness of…

Several indices of factorial consistency were applied to a biographical inventory administered to a longitudinal sample of 2070 students in the 7th, 9th, and 11th grades. Results were compared with those of a prior cross-sectional study at the same grade levels. Comparisons of dimensional change over the three grades, for the cross-sectional and…

This book contains a collection of principles, methods, and strategies useful in the planning, design, and evaluation of studies in education and the behavioral sciences. It is not a technical, detailed study, but an overview, a summary of alternatives, an exhibit of models, and a listing of strengths and weaknesses, useful as a checking and…

The report is a study of the utility of social reinforcement for improving Air Force training. It was conducted through a field evaluation of social incentive instructional systems which would serve to improve student motivation, classroom performance, and attitudes. The participants included a total of 300 trainees from two Air Force bases; 25…