A study comparison asks whether two ways of doing a task perform differently. “No statistically significant difference” means the analysis did not establish a difference under its chosen method; it does not prove equal performance. A planned analysis sets the question and method before inspecting outcomes; preregistration records that plan in advance. An additional analysis chosen after inspecting results is exploratory: it can suggest patterns worth checking, but should be identified separately. Report what was planned and explain any changes, so a promising follow-up does not silently replace what the study originally set out to test.