Simplicity and flexibility of the full rank linear model motivated this paper which introduces researchers to the theory necessary to understand the model and apply the theory in the analysis of some standard fixed effects experimental designs. The theory and examples should help researchers use the model as an experimental tool and a model for…

This paper describes a method to extract, by computer, maximum amounts of sequential information on pattern frequencies underlying verbal interactions in the foreign language classroom. For this purpose, an observation instrument was developed which was expected to allow the study of the structure of the interaction process; it was hypothesized…

An "undesigned" experiment is one in which the predictor variables are correlated, either due to a failure to complete a design or because the investigator was unable to select or control relevant experimental conditions. The traditional method of analyzing this class of experiment--multiple regression analysis based on a least squares…