Question

1. If the coefficient of determination is 25%, the correlation between two continuous variables is

a) -5

b) 5

c) -.25

d) .25

e) a or b

f) none of the above

2. To assess the correlation between height and weight, one should use

a) spearman correlation

b) regression equation

c. pearson correlation

d) point biserial correlation

3. For a computed r = -0.547, given a dataset of n = 16, alpha = .05, and two-tailed significance, one should fail to reject the null hypothesis.

a) yes

b) no

Answer 1