Though the Paired-Item-Score (Eakin and Long) (EJ 174 780) method of scoring true-false tests has certain advantages over the traditional scoring methods (percentage right and right minus wrong), these advantages are attained at the cost of a larger risk of misranking the examinees. (Author/BW)

Although a great deal of attention has been devoted over a period of years to the estimation of reliability from item statistics, there are still gaps in the mathematical derivation of the Kuder-Richardson results. The main purpose of this paper is to fill some of these gaps, using language consistent with modern probability theory. (Author)

Procedures for computing content validity and consistency reliability coefficients and determining the statistical significance of these coefficients are described. Procedures employing the multinomial probability distribution for small samples and normal curve probability estimates for large samples, can be used where judgments are made on…