Grade-Average Method: A Statistical Approach for Estimating Missing Value for Continuous Assessment Marks

Abstract

In this paper we propose an alternative way for finding an estimate of a missing score for continuous assessment mark of an examination so as to allocate an appropriate grade. We considered four different examinations and randomly selected five students of different class of grade in each, with their actual Examinations and Continuous Assessment Scores. The proposed grade-average method (GAM) is expected to be an unbiased or best estimator among the various methods of estimating the missing Continuous Assessment score adopted by different teachers.

Keywords: Continuous assessment; grades; average score and standard deviation