Suppose an ABCD Design Obtains the Following Results Regarding Level

Multiple Choice

Suppose an ABCD design obtains the following results regarding level of social adjustment with a chronically mentally ill client discharged to live with his family.
$$\begin{array} { l l l l l l } \text { A (Baseline) : } & 10 & 10 & 10 & 10 & 10 \\\text { B (Social skills training) : } & 10 & 10 & 10 & 10 & 10 \\\text { C (Occupational Rehabilitation) : } & 10 & 10 & 10 & 10 & 10 \\\text { D (Family education) : } & 15 & 20 & 25 & 30 & 35\end{array}$$
What is the most appropriate inference for future interventions with similar clients?

A) Just provide the family education.
B) Provide all three interventions in the same order.
C) Replicate the study to assess possible order effects.
D) none of these.