PSY 315 Week 5 Discussion Questions Essay Assignment Paper

Explain three assumptions for the evaluation of a correlation coefficient.

PSY 315 Week 5 Discussion Questions

Watch Segment 7, “Correlational Method” of the “Exploring Qualitative Methods” video, located in this week’s Electronic Reserve Readings.

1. If there was a perfect relationship between two variables, what would the scatterplot look like? (Use for question two also).

2. Why?

3. Does a negative correlation mean there is a weaker relationship between two variables? (Use for question 4 also)

4. Why or why not?

5. Explain three assumptions for the evaluation of a correlation coefficient.

6. Explain three limitations for evaluation a correlation coefficient.

7. Explain when you would use a Spearman and a point-biserial.

8. Explain when you would use a phi correlation coefficient.