Questions Refer to Table 12-1 Below Boys
Girls
-Consult Table 12-1

Questions refer to Table 12-1 below. In this study, a researcher is interested in determining if the type of reinforcement affects the number of books read over the summer. A sample of 12-year-old children (half of them boys and half of them girls) is randomly assigned to receive either candy, money, toys, or nothing for every book read over the summer. The mean number of books read over the summer for each group is listed within each cell.
Table 12-1:
Type of Reinforcement
Candy Money Toys None
$$\begin{array} { | l | l | l | l | } \hline \boldsymbol { M } = 10 & \boldsymbol { M } = 10 & \boldsymbol { M } = 10 & \boldsymbol { M } = 2 \\\hline \boldsymbol { M } = 10 & \boldsymbol { M } = 10 & \boldsymbol { M } = 10 & \boldsymbol { M } = 2 \\\hline\end{array}$$ Boys
Girls
-Consult Table 12-1. This study represents a _________ design.

A) completely within-subjects factorial design.
B) completely between-subjects factorial design.
C) mixed factorial design.
D) multiple-independent-groups design.