How are effect sizes used in correlational research?

How are effect sizes used in correlational research?

1. How is statistical significance measured, and what determines if a result is statistically significant?

2.Describe how longitudinal studies are designed. What kinds of conclusions can be drawn from analysis of their data?

3.Describe the association claims that can be made based on correlational research. Give an example of a correlational study, and explain what it concludes.

4.How are effect sizes used in correlational research? Give an example of how a small effect size can still be important.