David can currently read 12 sight words. The curriculum criterion states that he must be able to read 50 sight
words. His teacher plans to systematically introduce 4 new sight words at a time as David masters each new
set. David's teacher should employ a:
a. multiple baseline design
b. ABAB design
c. reversal design
d. none of the above
Question 2
An interim criterion used in a changing criterion design is determined by:
a. the highest performance level of baseline
b. the lowest performance level of baseline
c. the mean level of performance of baseline
d. any of the above