An Investigator Was Interested in Determining If the Size of a Coin

Multiple Choice

An investigator was interested in determining if the size of a coin influenced judgments of numerosity when people were asked to make judgments of how many coins were in a pile of coins.Fifteen subjects were asked to estimate the number of pennies in a display of 43 coins.In another condition,15 different subjects estimated the number of dimes for the same display.The value of the coin would be classified as a ____ variable.

A) between-subjects
B) within-subjects
C) confounded
D) disturbance