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Understanding the Pearson Product-Moment Correlation Coefficient: Exercise 13

Understanding the Pearson Product-Moment Correlation Coefficient: Exercise 13

Understanding the Pearson Product-Moment Correlation Coefficient: Exercise 13

Question Description

Please answer the following questions.

1. Were the vegetable intakes for both the parents and children in this study adequate? Provide a rationale for your answer.

2. What is the value of the Pearson “r” for the relationship between child self-esteem and body esteem? Describe the relationship and discuss its statistical significance.

3. What is the largest relationship in Table 3? What percentage of variance was explained by this relationship? Show your calculations and round your answer to two decimal places.

4. Is the relationship in Question 3 clinically important? Is the relationship statistically significant? Provide rationales for your answer.

5. Describe the correlation r = -40* using words. Is this a statistically significant correlation?

6. State the null hypothesis for Question 5. Was the hypothesis accepted or rejected? Provide a rationale for your answer.

7. What Pearson “r” value was calculated for the relationship between sedentary behavior and BMI%? What were the effect size (ES) and strength of this relationship? Please provide a rationale for this answer.

8. Is the relationship between sedentary behavior and BMI% statistically significant? Is the relationship clinically important? Please provide a rationale for your answer.

9. In a hypothetical study, BMI and percived quality of life were correlated at Pearson r=0.41. The sample size was N= 87, level of significance = 0.05, and the data were examined with a two-tailed test. Using the Table of Critical Values for Pearson “r” in Appendix B, determine if r= 0.41 is statistically significant. Please provide a rationale for your answer.

10. Are the findings from Hartson et al. (2018) study ready for use in practice? Provide a rationale for your answer.

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