Figure TB 8-5 $\begin{array}{llllll}0 & X & 0 & 0 & X & 0\end{array}$

Multiple Choice

Figure TB 8-5
$\begin{array}{llllll}0 & X & 0 & 0 & X & 0\end{array}$
-What type of design is shown in the accompanying figure?

A) add-remove formed by expanding program and observation elements over time
B) two-treatment design formed by expanding across programs
C) basic pre-post randomized experimental design
D) randomized experiment expanded with a nonequivalent control group