The ABAB design is a very powerful logical tool testing whether the
same pattern of desired events appears when and only when the
intervention has occurred.
This design allows for three such
determinations of this logical principle in the first B, the second A,
and the second B.
A. True.
B. False.
Question 2
Which of the following is an example of family aggregation?
A) Kim's suicide was apparently a reaction to her mother's abuse.
B) Jim and John, 21-year-old twins, are both schizophrenic.
C) Karen, her mother, and her grandmother all have been diagnosed with generalized anxiety disorder.
D) Both Jane and her husband are alcoholic.