The phrase "significant affect" means that something has a noticeable and important impact or influence on a situation, person, or thing. Full definition
Has a statistically significant affect on the probability of pregnancy. (doctor-info.website)
In the research study we introduced in Monday's posting on The Gottman Relationship Blog, «Patterns of Marital Conflict Predict Children's Internalizing and Externalizing Behaviors» (1993), Drs. Gottman and Lynn Katz found that a child's temperament does not have a statistically significant affect on marital satisfaction, its change over time, or the style in which the couple engages in marital conflict. (gottman.com)
Asset allocation may have a more significant affect on performance returns than industry weighting, stock selection, market timing or any other portfolio management decision. (usbank.com)