important to collect the data needed because it gave the information dealing with the subjects of the research. In this research, collecting the data was done on September,
9
th
2015. In this classroom action research, the data collection method consisted of a vocabulary achievement test and observation that were used to collect the primary
data. Meanwhile, interview and documentation were used to collect the supporting data. Further information about them is explained below:
3.4.1 Primary Data
Primary data refers to the data or the information that researcher collected to answer the research problems.
3.4.1.1 Vocabulary Achievement Test
According to Arikunto 2002:127, test is a set of questions or exercises or other instruments used to measure skills, knowledge, intelligence, and the talent of
individuals or groups. According to Hughes 2003:12-13 achievement tests are directly related to language courses. Their purpose is to establish how successful
individual students, group of students, or the sources themselves have been in achieving objectives. It is in line with Fraenkel and Wallen
’s statement 2009: 125 achievement test
is a set of questions used to measure an individual’s knowledge or skill. They also add that achievement tests are mostly used in schools to measure
learning or the effectiveness of instruction. In this research, achievement test was used to measure the students’ vocabulary achievement after being taught vocabulary
using Pelmanism game. The type of the test was multiple choices and there were 35 test items. The allocation of time given to the students for doing the test was 40
minutes. Hughes 2003:9 divides a test into four categories, namely: proficiency tests,
achievement tests, diagnostic tests, and placement tests. In this research, an achievement test was used because it was intended to know how successful students
can achieve the goal of the teaching learning process by using Pelmanism game in vocabulary teaching. The vocabulary test was done in each cycle after the actions
given. Arikunto 2002: 198 divides two kinds of test they are teacher-made tests and
standardized tests. In this case, the researcher used a teacher-made test since the test was constructed by the researcher in considering the materials that was taught in the
implementation of the action. The researcher made the test by doing a consultation
with the consultants and the English teacher.
According to Hughes 2003: 26, there are two criteria of a good test, namely validity and reliability. A test is said valid if it measures accurately what is supposed
to be measured Hughes, 2003: 26. In addition a valid test is reliable as well. As stated by Hughes 2003: 34 if a test is not valid, it cannot be reliable. Reliability is
related to consistency of giving the scores, how consistent they are for each individual from one administration of an instrument to another and from one set of
items to another Fraenkel and Wallen, 2009: 154. The test items in this research were constructed based on the vocabulary indicators that covered research objectives,
such as nouns, verbs, adjectives and adverbs that was taught by using Pelmanism game. Vocabulary test was given to the students at the end of each cycle after the
researcher implemented the actions. It was intended to measure the students’
vocabulary achievement and how far they comprehended the classifications in nouns,verbs, adjectives, and adverbs.
3.4.1.2 Observation
