marginal significancep = 0.06
However, when all of these variables – age, condition, and a group by condition interaction term – were included in the final model, only the main effect of age ( χ 2 = 16.79, p < 0.001) was significant; marginal significance remained for condition ( χ 2 = 3.42, p = 0.06) and the group by condition interaction term ( χ 2 = 3.18, p = 0.07).