Correlation between interest in reading scientific essays X1 and Correlation between scientific vocabulary mastery X2 and

3

4.1.3 Reading Comprehension

As elaborated in chapter III, reading comprehension variable was measured by a test with thirty one items. Then the total score of each respondent was identified. From the scoring of reading comprehension variable, the data is described as follows. Table 16. Data Description of Reading Comprehension Mean 56.75 31 Items Standard Deviation 9.56446 Maximum 74.00 Minimum 35.00 Mean of Score 1.83 The value of mean above was obtained from the number of questions that were written in its side. Therefore, the mean of score can be counted by dividing the mean with the score of its item. As a result, the mean for reading comprehension variable is 56.75 from 31questions. The mean of score is 1.83. The range between maximum and minimum score is 74 - 35= 39. The average standard deviation is 9.56446.

4.2 Data Analysis

Analysis of data is used to test whether there is any correlation between the research variables.

4.2.1 Correlation between interest in reading scientific essays X1 and

achievement in reading comprehension Y. The analysis of data is used to test whether there is any correlation between the interest X1 and reading comprehension Y. I proposed the test of correlation as follows: Ho: The correlation of X1 and Y is not significant. Ha: The correlation of X1 and Y is significant. 4 Based on the data presented in appendix 6, the result of statistical test shows that the value of correlation coefficient r =0.391 and the significant value is 0.001= 0 or less than 5. It means that Ho is refused, or there is a significant correlation between students’ interest in reading scientific essays X1 and reading comprehension Y. It was found that there was a significant positive correlation between the students’ interest in reading scientific essays and their achievement in reading comprehension. So the higher students’ interest is, the better their reading comprehension will be.

4.2.2 Correlation between scientific vocabulary mastery X2 and

achievement in reading comprehension Y Analysis of data is used to test whether there is any correlation between the scientific vocabulary mastery X2 and reading comprehensionY. In this case, I proposed the test of correlation as follows: Ho: The correlation of X2 and Y is not significant Ha: The correlation of X2 and Y is significant. Based on the data presented in appendix 6, the result of statistical test shows that the value of correlation coefficient r = 0.521 and significant value is 0.000 = 0 or less than 5. It means that Ho is refused, or there is a significant correlation between students’ scientific vocabulary mastery X2 and reading comprehension Y. It was found out that there was a significant positive correlation between the students’ vocabulary mastery and their achievement in reading comprehension. So the higher students’ vocabulary mastery is, the better their reading comprehension will be.

4.2.3 Correlation test between interest in reading scientific essays X1 and