In correlational research, variables are only measured and not __________.

In correlational research, variables are only measured and not __________.

related

manipulated

fixed

varied Question at position 6 6 2.5 points

Question 6 is unpinned. Click to pin. Question at position 6 What is the purpose of correlation studies?

What is the purpose of correlation studies?

to determine the direction and degree of a relationship between 2 variables

to determine the difference between 2 variables

to describe the central tendency of a variable

to determine the cause of a relationship between 2 variables Question at position 7 7 2.5 points

Question 7 is unpinned. Click to pin. Question at position 7 Which statistic indicates the proportion of variance that two variables in a bivariate distribution have in common?

Which statistic indicates the proportion of variance that two variables in a bivariate distribution have in common?

effect size

Pearson r

Coefficient of determination

confidence intervals Question at position 8 8 2.5 points

Question 8 is unpinned. Click to pin. Question at position 8 Which Pearson r indicates the strongest relationship between two variables?

Which Pearson r indicates the strongest relationship between two variables?

+ .25

+ .60

- .45

- .65