A new formula for the correction for chance success due to guessing was advanced and investigated, the mathematical solution of which has the property of equating the scores of fast and slow examinees of equal ability. (Author/JKS)

Paper is concerned with the effect that ipsative scoring has upon a commonly used index of between-subtest correlation. (Author)

Seven formulas for scoring test items with two options (true-false or multiple choice with only two choices) were investigated. Several conditions, such as varying directions for guessing and whether testees had prior knowledge of the proportions of false items on the test were also investigated. (Author/JKS)