In a study of the relationship between participant age and memory, the gender of the participant would represent a(n) _____ variable.
a. outcome
b. predictor
c. spurious
d. extraneous
Question 2
Jason finds a correlation of .85 between monthly homicide rates and monthly ice cream sales. However, he believes that the correlation is caused by monthly changes in temperature. In this case, temperature represents a(n) _____ variable.
a. outcome
b. predictor
c. spurious
d. extraneous