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

Question

Quizplus · Accepted Answer

This design is an add-remove design, characterized by the addition and subsequent removal of program elements (indicated by "X") over time, while observations (indicated by "0") are continuously made.

Figure TB 8-5 0X00X0 \begin{array}{llllll}0 & X & 0 & 0 & X & 0\end{array} 0​X​0​0​X​0​

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