There is general agreement that the effect of frequency on lexical access time is roughly logarithmic, although little attention has been given to the reason for this. The authors argue that models of lexical access that incorporate a frequency-ordered serial comparison or verification procedure provide an account of this effect and predict that…

A comparison of oral interviewing and written proctoring procedures is described. Students were required to present units orally or in writing from unit study guides. Final exam scores were positively correlated with the number of oral interviews one student interviewer gave to another student, and negatively correlated with the number of…

The need for an empirically defensible means of sequencing instruction appears to have been the primary motivator for research into learning hierarchies. Four methods for generating candidates for learning hierarchies were reviewed: introspection, formal analysis, observation, and statistical "fishing." Experimental transfer of training…