Answer:
ABAB design
Explanation:
This method used in the field of research on Behavior Modification consists of four phases:
1. Phase A: Stable patient.
2. Phase B: Introduction of treatment.
3. Second Phase A: Withdrawal of treatment before consolidation.
4. Second Phase B: Reintroduction of treatment
This allows to verify the reliability of the change produced by the treatment. If it produces a new behavior change, we would have more evidence that the cause of the change is treatment.
Answer:yes
Explanation: there is not a lot of gold but a high demand
1) There are 13 states in the western region
2) The growth rate for the west was more than twice of the national by manufacturing
3) Migration increased once there was a discovery of gold in California
4) The west was one of the last regions to be added into the United States
5) In the west Hawaii and California have the highest temperatures
D. The study of a society and its natural environment, would be the closest definition
