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:
You didn't list the answers
Explanation:
Answer:
Drought in the Sahel in the 1970s and 1980s made it look like the desert was expanding, because the reduction of rainfall at the desert margin (the Sahel) caused a reduction in vegetation. Warm, moist air rises near the equator, then cools and condenses its moisture, which falls as rain or snow
It allowed farmers to plant water wherever, and help make dry soil more suitable for planting overall.