Suppose you obtained the following results in a multiple baseline design assessing the impact of family therapy on tantrums,chores,and truancy in treating one child and his parents.Which interpretation(s)is(are)plausible?
Number of tantrums:
$\begin{array} { l l l l l l l l l l l l l } \mathrm { Al } : & 4 & 4 & 4 & \mathrm {~B} 1 : & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 \end{array}$
Number of chores performed:
A2: $\begin{array} { l l l l l l l l l l l l } 3 & 0 & 0 & 3 & 3 & \text { B2: } & 3 & 3 & 3 & 3 & 3 & 3 \end{array}$
Number of days truant:
$\begin{array} { l l l l l l l l l l l l } \text { A3: } & 4 & 4 & 4 & 0 & 0 & 0 & 0 & \text { B3: } 0 & 0 & 0 & 0 \end{array}$
A)History could have caused the change.
B)The intervention may have had generalizable effects.
C)History could have caused the change or the intervention may have been effective, with generalizable effects.
D)none of these.

Question

Quizplus · Accepted Answer

The data from the multiple baseline design suggests that both history and the family therapy intervention may have contributed to the changes in behavior observed. The fact that there were multiple baselines suggests that history could have played a role, but the fact that the changes were observed across multiple behaviors (tantrums, chores, and truancy) suggests that the intervention may have had generalizable effects. Therefore, it is plausible that either or both of these factors contributed to the observed changes in behavior.

Suppose You Obtained the Following Results in a Multiple Baseline Al:444 B1:00000000\begin{array} { l l l l l l l l l l l l l } \mathrm { Al } : & 4 & 4 & 4 & \mathrm {~B} 1 : & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 \end{array}Al:​4​4​4​ B1:​0​0​0​0​0​0​0​0​

Suppose You Obtained the Following Results in a Multiple Baseline $\begin{array} { l l l l l l l l l l l l l } \mathrm { Al } : & 4 & 4 & 4 & \mathrm {~B} 1 : & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 \end{array}$