Six scoring methods for assigning weights to right or wrong responses according to various instructions given to test takers are analyzed with respect to expected change scores and the effect of various levels of information and misinformation. Three of the methods provide feedback to the test taker. (Author/CTM)

The most consistently used scoring system for the rod-and-frame task has been the total number of degrees in error from the true vertical. Since a logical case can be made for at least four alternative scoring systems, a thorough comparison of all five systems was performed. (Author/CTM)

This research attempted to interrelate several methods of producing option weights (i.e., Guttman internal and external weights and judges' weights) and examined their effects on reliability and on concurrent, predictive, and face validity. It was concluded that option weighting offered limited, if any, improvement over unit weighting. (Author/CTM)