Which of the following research questions would be the most difficult to address using a reversal design?
A) Evaluating the impact of posted signs on cell phone usage at a library
B) Evaluating the effectiveness of a reading program on a child's reading ability
C) Evaluating the effectiveness of an anti-smoking campaign
D) Evaluating the effectiveness of a sales-competition on the performance of a salesperson

Question

Quizplus · Accepted Answer

Reversal designs involve observing a behavior both before and after the introduction of an intervention, and then again after its withdrawal. Evaluating the effectiveness of a reading program on a child's reading ability would be the most difficult to address with a reversal design because once a child has learned to read better, removing the program won't erase the skills they've acquired, making it hard to measure the program's impact through reversal.

Which of the Following Research Questions Would Be the Most