The phrase "significant moderator" refers to a person, factor, or variable that has a noticeable impact or influence on the relationship between two other things or variables. Full definition
On the other hand, District size, School size, School level, and Number of principals in the school over the last 10 years were significant moderators of the relationship between efficacy and conditions in the class and school, along with student achievement. (wallacefoundation.org)
Significant moderator effects do provide strong evidence of causal heterogeneity, but conclusions about the sources of that heterogeneity are open to confounding. (frontiersin.org)
Maternal sensitive responsiveness did not mediate the associations, and maternal oxytocin receptor genotype was not a significant moderator. (journals.lww.com)