 MRMDiets?' by choosing a 1-7
response on several scales, including Unlikeable-Likable,
Ineffective-Effective, and Not credible-Credible. The researchers averaged
six such scores to give an overall Credibility score, on the 1-7 scale, with
7 being the most credible. Simmons and Nelson (2020) were sufficiently
intrigued to carry out two substantial very close replications. With the
cooperation of the original researchers, they used the same materials and
procedure. They used much larger groups and preregiste