A reversal design (ABAB) involves a. Gathering data during an ...

[olgavictoria]

A reversal design (ABAB) involves
 
  a. Gathering data during an initial or baseline (A) phase when the variable of interest is not present
  b. Conducting a second treatment or manipulation (B) phase in which the event or situation of interest is present
  c. Repeating the alternation of these baseline and manipulation conditions to establish a clear pattern showing the
  relationship between the variable manipulation and changes in levels or rates of problem behaviors
  d. All of the above

Question 2

To test these summary statements directly
 
  a. We must ask the person what they are thinking when they engage in the problem behavior
  b. We must ask support providers what they are thinking when the person engages in the problem behavior
  c. We must complete a formal diagnosis
  d. We must observe the person under conditions in which particular relevant antecedents and consequences are
  present and under conditions in which they are not present
  e. None of the above

[smrerig]

Answer to Question 1

d

Answer to Question 2

d