Validity of the Test

30 of the test that the writer used. The writer also presents the scoring procedure for the test.

1. Validity of the Test

Gronlund as cited in Brown 2004 says that validity is “the extent to which inferences made from assessment results are appropriate, meaningful, and useful in terms of the purpose of the assessment”. Hughes 1989 states “a test is said to be valid if it measures accurately what it is intended to measure”. Further, he argues there are four types of test validity, namely content validity, criterion- related validity, construct validity, and face validity. To found out whether the test that the writer constructed was valid and reliable the writer conducted a pilot test on November 19, 2009 in Structure V Class. From the result of the pilot test, it was found that the test only covers three out of the four types of validity. The following is the description of the validity that the test covered. a Content Validity Content validity refers to the content of the instrument, which is the test. Hughes 1989 states that content validity constitutes “a representative sample of the language skills, structures, etc. with which it is meant to be concerned.” Further, Hughes argues that the content validity of a test can be seen from the specification of the skills, structures, or other elements. PLAGIAT MERUPAKAN TINDAKAN TIDAK TERPUJI PLAGIAT MERUPAKAN TINDAKAN TIDAK TERPUJI 31 From the result of the pilot test, the writer found that the test used in this study covered the content validity. The test in this study was to measure the students’ mastery in translating relative clauses from Indonesian into English and to find out errors that they made when doing the translation. The content of the test specifies on grammar element, i.e. relative clauses. The participants were to translate twenty items sentences in the test from Indonesian into English. All sentences in the test contained relative clause. The test in this research covered content validity because the participants were able to do the test. The participant could do the test because they were familiar with the constructions. It was shown from the test result. b Construct Validity A test is said to have construct validity if “it can demonstrate that it measures just the ability which it is supposed to measure” Hughes, 1989. The test in this study was designed to measure the mastery of the fifth semester students’ in translating relative clauses from Indonesian into English. From the result of the pilot test, the test used in this study has the construct validity. It was intended to measure the fifth semester students’ mastery on grammar and translation. The fifth semester students are considered to have learned and internalized the construction of relative clauses and the translation of relative clauses from Indonesian into English in their courses, hence were able to do the test. PLAGIAT MERUPAKAN TINDAKAN TIDAK TERPUJI PLAGIAT MERUPAKAN TINDAKAN TIDAK TERPUJI 32 c Face Validity Face validity covers the looks of the test. If it looks as if it measures what it is intended to measure then it has face validity Hughes, 1989. Since the test used in this study measures students’ mastery in translating relative clauses from Indonesian into English, it was constructed in form of sentences. The students were to rewrite while translate the test items from Indonesian into English. From the result of the pilot test, the writer found that the participants could understand clearly how to do the test and thus were able to do it. It means that the participants knew what to do when they got the test sheets. The looks of the test can be seen in the appendices See appendix F.

2. Reliability of the Test