validity of the generalization of the result. The sample is made up of the students from the population who is chosen to participate in the study.
The writer used purposive samples in choosing the samples because of the administrative limitations in randomly selecting and assigning individuals to
experimental and control groups. Therefore, the writer used available classes as the samples. Those were VIII B as the experimental group and VIII H as the
control group. The experimental group was taught by using study tour method and the control group was taught only by using pictures of Kalianget Resort.
3.3 Instrument for Collecting the Data
According to Kerlinger 1965:84 ‖instrument is an important tool for collecting
the data in a research study‖. He also states that ―for the most part, the instrument used to measure the achievement in education in a
test‖. Based on Saleh 2001:31 ‖the term instrument can be used as a means for collecting the data.‖ Instrument is
very significant for gathering the data accurately. In this study, the writer used writing test as the instrument for gathering the data. A test is very important
instrument of which researcher will get the data of her investigation. Test is a set of question or other practice or device used to measure the skill, intelligence,
ability or talent of an individual or a group. In this study, the writer used pre-test, treatments, and post-test. According to
Harris 1969:69, ―there are some possible writing test and composition tests‖. In
assessing students‘ ability in producing descriptive text, the writer used essay test in the form of composition. In this assessment, the students were required to make
descriptive text based on the given topic. For the experimental group, there was a study tour method which could enrich students‘ knowledge about the situation of
Kalianget Resort, helped the students to know the real condition about the place which were described, and also there were 5 keywords given to help them to
develop their descriptive text. While the control group would be given some pictures of Kalianget Resort completed with 5 keywords given as well.
1 Pre-Test
The students were given a pre-test in starting the data collection to identify the writing descriptive achievement.
2 Treatments
The two groups were given different treatment. The experimental group got a treatment by using study tour method in writing descriptive text. On the
other hand, the control group was taught by using pictures as media in teaching writing descriptive text. In gathering the data, the writer asked the
two groups to make a descriptive text as treatments, and it could be an individual test or a group test.
3 Post-Test
Post-test was conducted after the treatments. Here, for the experimental group, the experiences visited Kalianget Resort were used as aid in teaching
writing descriptive text. For the control group, their memories of the given pictures of Kalianget Resort was used to write descriptive text. Post-test is
used to measure the students‘ ability after the treatments.
3.4 Method of Collecting the Data
