testing_lectue 04testing_lecture 04testing_lecture 04testing_lecture 04.ppt

Disadvantages They are inclined to test specific or minor details; They encourage blind guessing 4.2.2 New trend Some item writers reduce the possibility of correct guessing by including a third category such as ‘not given’ or ‘does not say’. This can be useful in reading comprehension test, but in listening comprehension, especially where the text is only played once, it can be demanding and lead to student confusion. 4.1 Multiple-choice items 4.1.1 General 4.1.2 The stem 4.1.3 The correct option 4.1.4 The distractors 4.2 Dichotomous items 4.2.1 The advantages and disadvantages of dichotomous items: 4.2.2 New trend 4.1 Multiple-choice items 4.1.1 General 4.1.2 The stem 4.1.3 The correct option 4.1.4 The distractors 4.2 Dichotomous items 4.2.1 The advantages and disadvantages of dichotomous items 4.2.2 New trend The advantages and disadvantages of multiple choice items Advantages: Scoring process is both objective and convenient, and the result of the test is reliable; Since each item tests only one point, it is therefore specific in terms of testing purpose; Multiple choice items are so widely applied that they can be used to test many aspects of language knowledge and skills . Disadvantages: While they provide good option for assessing receptive language knowledge or skills, they can hardly be useful in testing the candidates’ productive knowledge and skills; To some extent, they encourage blind guessing from the candidates; The writing of multiple choice items is time-consuming; They may bring negative effect to language communication, and therefore exert a negative washback to language instruction. Item structure Stay here until Mr. Short ______ you to come. = stem A. Told options/ B. will tell = responses/ = distractors C. is telling alternatives D. tells = answer/correct option/key The following principles should be observed when multiple-choice items are constructed: Each multiple-choice item should have only one answer. I stayed th