A researcher found a correlation of +1.21 between variables A and B. This means that
a. there is a high relationship between the two variables.
b. the relationship between the two variables is perfect.
c. the variables could be predicted from one another with a high degree of accuracy.
d. a mistake has been made in computation of the coefficient of correlation between the two variables
Question 2
The use of a placebo in an experiment on the side effects of a new drug is an example of a ____ experiment.
a. single-blind
b. double-blind
c. meta-analytic
d. counterbalanced
e. repeated measures