Which of the following presents an example of an additive design?
A)OOOO$\quad\quad$XOXOXOXOXO
B)$\text { XOXO \quad XOXOXOXOXO } \quad OOOO$
C)$\text { XOXO } \quad OOOOOOOOOO$
D)$\text { OOOO ~~XOXOXOXOXO~~~ OOOO }$

Question

Which of the following presents an example of an additive design? 
A)OOOO$\quad\quad$XOXOXOXOXO 
B)$\text { XOXO \quad XOXOXOXOXO } \quad OOOO$ 
C)$\text { XOXO } \quad OOOOOOOOOO$ 
D)$\text { OOOO ~~XOXOXOXOXO~~~ OOOO }$

Quizplus · Accepted Answer

An additive design involves adding a treatment to an existing condition, as seen in option D where the treatment (XOXOXOXOXO) is added between two periods of no treatment (OOOO).

Which of the Following Presents an Example of an Additive \quad\quad

Which of the Following Presents an Example of an Additive $\quad\quad$