SPCE 630 Final Exam Questions & Answers Rated A+

1. strongest threats to internal validity for withdrawal/reversal designs include all of the following except ANS history 2. the primary ethical concern associated with withdrawal designs is ANS removing a successful intervention 3. external validity of an ABAB design can be improved by ANS having at least 3 participants 4. unlike withdrawal designs, reversal designs involve ANS a second intervention phase 5. which is the most powerful within-subject design? ANS ABAB 6. in withdrawal designs, when is procedural infidelity most likely to occur? ANS - immediately after condition changes 7. when using "ABC Notation," the B stands for ANS intervention 1 8. which of the following is NOT a limitation of an AB design (intervention is not withdrawn, lack of control for internal validity, lack of control for external va- lidity, cannot determine functional relationships) ANS intervention is not withdrawn 9. what can researchers do to help avoid attrition in withdrawal designs? ANS dis- close and describe the withdrawal condition during the consent process