Analyzing Happiness Measures: A Comprehensive Approach

Abstract

Week 6 Assignment: Correlation and Regression Written Response Worksheet NAME: Instructions: Follow along with the step-by-step instruction manual provided for the Week 6 assignment. The instruction manual will make specific reference to data interpretation questions that require written responses. Use this worksheet to answer these written response questions. Each question is listed below along with the number of points each question is worth toward the assignment. Type your response in the space provided below each question. QUESTION 1 3 points Based on the correlation coefficient between happiness score at Time 1 and Time 2, does the happiness measure appear to have sufficient test-retest reliability? In your response, report the Pearson r, and explain the criteria you used to make your determination. QUESTION 2 3 points Based on the Cronhbach’s alpha statistic, does the four-item happiness measure appear to have sufficient internal consistency (interitem reliability)? In your response, report Cronhbach’s alpha, and explain the criteria you used to make your determination. QUESTION 3 3 points As you examine the interitem correlation matrix and the item-total atatistics (Cronbach’s alpha if in the item deleted column) included in the reliability analysis output, it indicates that one of the four items on the happiness measure is not as strongly correlated as the other three items. Report which item (1, 2, 3 or 4) the output indicates as being a relatively weaker fit (i.e., not as strongly related with the others) in the measure and what the Cronbach’s alpha would be if this item were to be excluded from the scale. QUESTION 4 3 points Based on your intuition, do you expect that there will be a positive relationship, negative relationship, or no relationship between body mass index and self-esteem? Describe the predicted relationship and provide a brief one-sentence rationale for your prediction. QUESTION 5 5 points Paste the scatterplot figure you created showing the relationship between body mass index and self-esteem. Include an APA style title with the figure. PASTE SCATTERPLOT FIGURE BELOW: QUESTION 6 3 points Describe the nature of the relationship between body mass index and self-esteem score based on the scatterplot figure. What is the direction and strength of the relationship? QUESTION 7 5 points In about two sentences, report and interpret the results of the Pearson correlation in APA style. Report the correlation coefficient in correct statistical notation. Also report the coefficient of determination as a measure of effect size. Finally, interpret the findings (i.e., was there evidence...