Evaluating Students´ Answerscripts Using Fuzzy Numbers Associated With Degrees of Confidence

This paper presents a new approach for evaluating students´ answerscripts using fuzzy numbers associated with degrees of confidence of the evaluator. The satisfaction levels awarded to the questions of students´ answerscripts are represented by fuzzy numbers associated with degrees of confidence between zero and one. The arithmetic operations between the alpha-cuts of fuzzy numbers are used to evaluate the total mark of each student, where alpha isin [0,1]. The proposed method can overcome the drawbacks of the methods presented by Biswas (1994) and Chen and Lee (1999). It can evaluate students´ answerscripts in a more flexible and more intelligent manner.