The present study proposes and examines the multidimensional vector (MDV) model framework as a modeling schema for choice response times. MDV extends the Thurstonian model, as well as signal detection theory, to classification tasks by taking into account the influence of response properties on stimulus discrimination. It is capable of accounting…

A survey of how 17 recent experimental psychology textbooks treated the subject of random assignment of subjects to groups for purposes of experimentation is discussed. Findings indicate that the textbooks generally gave favorable coverage to the practice. Further research might improve this simplistic understanding. (Author/DB)

There are two types of errors made in feeling-of-knowing (FOK) studies: a commission error occurs when a subject answers a question incorrectly, and an omission error occurs when a subject fails to provide an answer for a given question. A subject makes a commission error if he or she responds to the following question, "In which city does…

Explains an error analysis procedure using the computer which requires no previous student experience with the computer. (CP)

Maintains that having students estimate the size and width of a class waste paper can (placed on a desk) is a simple and effective way of illustrating perceptual distortion. Tests show that people will consistently overestimate the height of the can, allowing for a useful discussion on sensory distortion. (MJP)