1.Results of inter-observer agreement and treatment integrity checks are considerations for which type of validity?______
2.Reversal designs should not be considered when the following is a concern:
3.This design is considered the most straightforward and generally the most powerful within-subject design for demonstrating a functional relationship.
4.Unplanned environmental variations that may impact experimenter demonstration of experimental control are called ___________________.
5.Effects of a token economy on hand raising: