Lastly, the researchers used the Pearson r correlating coefficient to interpret the statistics then correlate the data collected from the respondents. Statistical Treatment Since this is a correlational study, and the study is finding the relationship of the independent variable or the predictor, and the dependent variable or the criterion measure, the researchers decided to use Pearson r correlating coefficient. Pearson r correlating coefficient was used to interpret whether the variables are correlated. Pearson r correlating coefficient was used because it is one of the most common statistics of association or relationship. Technically, it is defined as the ratio of co-variance with the standard deviation of the x and the y variables. The formula used was: Where: x = students’ perceived level of sleep deprivation (x or independent variable) y = academic performance of the student (y or dependent variable) Mx = Mean of x Values My = Mean of y Values x - Mx & y – My = Deviation scores (x - Mx)^2 & (y - My)^2 = Deviation Squared (x - Mx)(y - My) = Product of Deviation Scores r = the Pearson r Correlating Coefficient Interpretations of Pearson r
Values Interpretation 0.91 – 1.00 Very High Relationship 0.71 – 0.90 High Relationship 0.41 – 0.70 Marked and Substantial 0.20 – 0.40 Present but Slight 0.00 – 0.19 Negligible IV. RESULTS AND DISCUSSIONS This section depicts the discussion of data collected from the study. It will have tables, descriptive analysis, and interpretation of data. Also, the statistical data will be interpreted in this section. Table 1.1 Perceived Effects of Sleep Deprivation on Students’ Class Participation Statements 4 3 2 1 WM Verbal Description 1. I feel sleepy during discussion. 18 16 1 0 3.5 Strongly Agree 2. I get easily distracted and I lack focus. 19 14 2 0 3.5 Strongly Agree 3. I have difficulty in understanding class discussion; thus, unable to answer my teachers’ questions. 25 9 1 0 3.7 Strongly Agree 4. I feel agitated during class. 22 12 1 0 3.6 Strongly Agree 5. I get mental block while answering a question by my teacher. 15 17 3 0 3.3 Strongly Agree GENERAL WEIGHTED MEAN 3.5 Strongly Agree Table 1.1 shows the weighted mean of each of the perceived effects of sleep deprivation on the students’ class participation. As shown in the table all the respondents strongly agreed that they experienced every statement above often when they are sleep deprived. In a report done by Kelly, W. (2009), it showed that lack of sleep affects the students’ performance in class. Her study showed that the students that slept for 9 hours or more in 24 hours had higher grade point average than the students that had short amount of sleep. The students that had less sleep showed signs of uneasiness, less inventive, more psychotic, and also more inclined to daydream. As the table shown, the respondents strongly agreed in every statement but the statement that had the highest weighted mean with a score of 3.7 is “having difficulties in understanding the class discussion. In conclusion, the respondents responded that the
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- Fall '19
- Psychology, Correlational Study of Sleep Deprivation