Unless the characteristics of the units accompanying measurements are known, little legitimate evaluation can occur. Educators cannot assume their measurements are valid bases for evaluative statements unless higher level techniques (such as interval and ratio scales) have been employed. Misinterpretation arises from assuming that measurements…

The A to F grading pattern is a highly subjective practice that demands great expertise and assumes a high degree of test validity. This article discusses the merits of extra credit assignments, homework, and "pop" quizzes; outlines defensible grading procedures; and discusses common grading problems, such as using grades as weapons. (MLH)

Describes the results of a two-year study to evaluate an assessment center. Results indicate that it is a valuable, valid, job-related instrument for the selection of school administrators. (Author/JM)

Can students' writing ability really be assessed by standardized, objective tests? This question is explored here along with a discussion of the alternatives and advice for principals to help their English and language arts teachers confront the issue. (Author/TE)