Independent Variable Dependent Variable Type of Data Instrument for Collecting Data Try-out

3.3.1 Independent Variable

Independent variable is a variable that makes change in the value of one variable. In this research, the independent variable is using tea party as the technique to teach conditional sentences.

3.3.2 Dependent Variable

The dependent variable is the variable that the researcher observes and measures to determine the effect of the independent variable that is measured in order to know how far the independent variable affects it. The dependent variable of this research is the effectiveness in teaching conditional sentences. 3.4 Method of Collecting Data The method of collecting data should be applied in conducting the research in order to get the appropriate result of the research.

3.4.1 Type of Data

The data for the objective of this research were students‟ scores in mastering conditional sentences after they were taught by using tea party technique for the experimental group and using traditional technique for the control group.

3.4.2 Instrument for Collecting Data

Instrument is an important device to collect data in a research program. In this research, a test was used as a method of collecting data. In general, there are two kinds of test namely essay test and objective test. However, I used the objective test, and it was multiple choice test and fill-in-the-blank test. These types of tests were chosen because of some advantages. Those were: the technique of scoring was easy; it would be easy to compute and determine the reliability of the test; and it would be more practical for the students to answer.

3.4.3 Try-out

Try-out test is highly important since the result will be used to make sure that the instrument has such characteristics as valid and reliable. The try-out test consists of 40 items. After scoring the result of the try-out, I made an analysis to find the reliability, validity, level of difficulty, and discriminating power of the items on the multiple choice test. Then, for fill-in-the-blank test, I assigned three validators to check the validity. All the items were used to decide which item should be used in making instrument.

3.4.4 Condition of the Test

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