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1. Quantitative Research Findings
This part shows the statistical results of the research variables based on the calculation in SPSS 21. The first result is descriptive statistics and correlation
using Pearson Product Moment Correlation for two variables correlation and Multiple Correlation for three variables correlation. In order to fulfill the
condition of having parametric statistics Pearson Product Moment Correlation and Multiple Correlation, I employed data normality and linearity test.
a. Descriptive Statistics
The descriptive statistics is used to describe summary of the data scores for each research variable as the preliminary result in a quantitative result. The descriptive
statistics shows the number of samples, the minimum score, the maximum score, the mean or the central tendency, and the standard deviation or the amount of variation
from the average. The descriptive statistics for students’ learning style x
1
, English speaking ability x
2
, and academic performance y is shown in Table 4.2. Table 4.2
Descriptive Statistics of students’ Learning Style x
1
, English Speaking Ability x
2
, and Academic Performance y
Descriptive Statistics
N Minimum
Maximum Mean
Std. Deviation LS
30 35.00
47.00 41.8667
3.50107 SA
30 52.00
86.00 72.8667
9.31344 AP
30 42.00
91.00 71.4000
11.30334 Valid N listwise
30
1 Students’ Learning Style x
1
The data for this variable were taken from the data scores of students’
learning style questionnaire. The number of participants was 30 students of tenth graders in Vocational High School. From Table 4.2, it can be seen that the
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minimum score of students’ learning style is 30. The maximum score is 47. The
mean is 41,8667. The standard deviation is 3,50107. The descriptive statistics also shows the histogram of each variable. The histogram of students’ learning style is
shown in Figure 4.1.
Figure 4.1 Histogram of
Students’ Learning Style x
1
2 English Speaking Ability x
2
The data for this variable were taken from the teacher’s scoring sheet of
three speaking activities. The activities were singing contest, interview, and group discussion. The maximum sum of participants showed their English speaking
ability scores. The number of participants was 30 students of tenth graders in Vocational High School. From Table 4.2, it can be seen that the minimum score
of students’ learning style is 52. The maximum score is 86. The mean is 72,8667.