3. Data Analysis
The data analysis contains the analysis of data which are used to answer the questions revealed in problem formulation. So as to answer the first question in the
problem formulation, statistical computation is necessary required.
a. Reliability of the Test
The method applied to measure the reliability of the test in this research is the split-half technique test. The items of the test were divided into two halves,
which were odd-numbered items and even-number items. Then, the scores of both halves were counted. In this research, The Pearson-Product Moment was applied in
order to determine the correlation of these two-part score. The result of the coefficient correlation or the reliability of the half test was 0,98 see appendix 2.
To define the reliability of the whole test, the researcher applied The Spearman- Brown Prophecy formula. The result was 0,99 see appendix 3, which points out
that the test has high reliability Best, 1986: 240.
b. Descriptive Analysis Presentation
Since this research aims to figure out the students’ mastery in applying English preposition for and to, a descriptive analysis presentation was required. The
descriptive analysis provides the mean, median, range, mode, and standard deviation. By providing these type of scores, the students’ mastery in preposition
for and to can be determined. PLAGIAT MERUPAKAN TINDAKAN TIDAK TERPUJI
Table 4.5 The Descriptive Analysis
No. Variables
Score 1
Mean 23
2 Median
23 3
Range 14
4 Mode
23
The table provided above represents the descriptive analysis of the test. To answer the first question in the problem formulation, the determination of the score
was required. Thus, the students’ mastery in using English prepositions for and to were determined according to the basis of the Academic regulation of Sanata
Dharma University 2010 Peraturan Akademik Universitas Sanata Dharma, 2010:27.
Referring to the academic regulation of Sanata Dharma University Peraturan Akademik Universitas Sanata Dharma 2010, the students’ mastery of
prepositions for and to is determined by applying a measurement system based on The Pedagogy of St. Ignatius. The measurement system is Sistem Penilaian Acuan
Patokan Criterion-referenced System. This measurement requires the researcher to firstly determine the minimum passing score as the minimum standard to pass
certain material, which is also known as the minimum-criterion of 3C Conscience, Compassion, and Competence approach. Since the score uses percentage as the
orientation, 56 is determined as the minimum passing score that the student should achieve in order to pass the test, which will be included in the category of
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