Validity
The extent to which an effect of an intervention, and, therefore, the use of the intervention itself, can be generalized; that is, will and intervention work the same way with different clients and practitioners in different settings, and over time.
What is external validity?
The replication of a given intervention by the same practitioner and probably the most common form of replication.
What is direct replication?
The characteristics are:
Reliable, Valid, Sensitive to change, Non-reactive, Direct, Easy to use, Accessible, Relevant to intervention planning
What are the characteristics of a good measure?
The use of only one measure per target and/or one method of recording (especially when there is more than one target) decreases the extent to which multiple measures or multiple recording methods coincide.
What is Mono-operation and mono-method bias?
The case study (Simultaneous Intervention and Observation).
What is evaluation design B?
An intervention design sometimes used when a client's behaviors are so severe the researcher can not wait to establish a baseline but must begin with the intervention followed by a baseline.
What is BAB design?