Walking is a common activity of daily life and researchers have used the range 3-6 km.h[superscript -1] as reference for walking speeds habitually used for transportation. The term self-selected (i.e., individual or comfortable walking pace or speed) is commonly used in the literature and is identified as the most efficient walking speed, with…

For most tests administered with time limits some examinees complete all items while others do not. It is often useful to know what the distribution of items completed would be if the number of items on the test were much larger. It may also be of interest to estimate the correlation between working speed, as measured by the number of items…

A method for estimating power scores is described. By way of illustration, it is applied to 21 students who were improperly timed on a standard test. Some empirical results are given in support of the estimation procedure. (Author)

The previous theoretical development of the Poisson process as a strong model for the true-score theory of mental tests is discussed, and additional theoretical properties of the model from the standpoint of individual examinees are developed. The paper introduces the Erlang process as a family of test theory models and shows in the context of…

Questions are raised about the time within a test administration period that may be available for review for those candidates who have time enough, or more than enough, to finish. The assumption is proposed that rate of work may be normally distributed. The rate of work for those who have finished a test cannot be determined from their answer…