Speculate on what would occur to statistical power given the recommended change in the scenario. Identify any practical challenges that making the change could incur. This could include demand on resources to implement the change, threat to statistical conclusion validity or even ethical concerns if relevant. There could be others that you think of that may apply.

Upon completion of an evaluation of the Templeton program the results were surprisingly "not significant" in terms of the reported improvement in client well-being. One issue that was noted that for the evaluation data was collected only on a sample of the participants during the evaluation cycle. It was recommended that in the next evaluation cycle all participants to the program be included in the evaluation.