A between-subjects experiment comparing four treatment conditions produces 20 scores in each treatment condition. How many individuals participated in the entire experiment?
a. 1
b. 4
c. 20
d. 80
Question 2
One of the measures Rosalyn is including in her study of the effects of environmental enrichment is the score on a standardized scale of intelligence. This is best described as a(n) ____ scale.
a. nominal
b. ordinal
c. interval
d. ratio