33. In this study I chose multiple choice test as an instruments in my research since the scoring can be done quickly and involves no judgments as to degrees of
correctness. Besides, multiple choice tests tend to have superior reliability and validity Harris 1969: 7.
3.3.1.1 Construction of Instrument
Harris 1969: 7 said that the multiple —choice consists of stem or lead, which is
either a direct question or an incomplete statement, and two or more choices or responses, of which one is the answer and the others are distractors
—that are the incorrect responses. In this study, I used 50 items of multiple
—choice of four distractors: A, B, C, and D.
To assess the development achieved by the students a series of tests were carried out. They were pre-test, formative test, and post-test. The tests were
design ed to measure the students‘ ability in simple present tense. It focused on
subject-verb agreements because based on my observation, the seventh grade students of SMP N 1 Bawang‘s mastery in simple present tense especially in
subject-verb agreements were still low and it needed to be increased.
3.3.1.2 Pre-test
Pre-test was given to the students in the first step of collecting data. Pre-test was used to identify the students‘ ability in simple present tense before the treatment
was given. In other words, i t told the beginning conditions of the students‘ ability
in simple present tense. The test sheet could be seen in appendix 9
3.3.1.3 Formative test
Formative test is a test which is evaluating students in the process of forming their competencies and skills with the goal of helping them to continue that growth
process Brown, 2004: 6. In this study, the writer conducted the formative tests in the end of cycle 1 and cycle 2. The test sheet could be seen in appendix 10 and
11
3.3.1.4 Post-test
Post-t est was conducted to measure the students‘ achievement after the
treatments. The test was the same as the pre-test and formative tests. Result of the post-test was analyzed to see to what extent single slot substitution drills develop
the students‘ mastery in simple present tense. The test sheet could be seen in
appendix 12
3.3.2 Questionnaire
