Please Complete This Assignment By Using Jamovi No Hand Calculation Is Needed Please Report Any Numerical Values To 2 1 (215.25 KiB) Viewed 76 times
Please complete this assignment by using Jamovi. No hand calculation is needed. Please report any numerical values to 2 decimal places. Question 1 A psychologist was interested in the relationship between self-esteem and academic achievement. He asked 20 students to fill out a self-esteem scale and to write down their final exam scores. The data were entered in the Excel file “exam.xlsx”. a a) Conduct a correlation analysis and report the findings in sentence. Suppose the psychologist found a significant positive correlation between self-esteem and exam scores. She believed that this finding implies that a higher academic achievement leads to a higher self-esteem. b) What is the problem of this belief? Are there any alternative explanations? Since the psychologist believed that a higher academic achievement leads to a higher self-esteem, she decided to work out a mathematical formula that can predict the self-esteem level of a student from his/her final exam score. c) Conduct a regression analysis for this purpose. Report the results in sentence. d) According to the regression analysis results, if a student has a final exam score of 80 marks, what self-esteem level is expected?
NP OU A Student ID Self-esteem 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Exam score 18 18 23 24 14 18 17 15 16 21 18 18 19 20 18 22 20 21 20 20 75.1 62.2 89.3 76.2 48.6 75.4 74 63.7 48.1 73.3 60.3 66.2 65.2 61.3 64.6 68.7 81.1 62 78.8 82.7
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