DRD4 and Anxiety: However, for CCQ anxiety, there were significant main effects for age (F(1,83) = 9.83, p = 0.002, η2 = 0.106) and DRD4 (F(1,83) = 5.28, p = 0.024, η2 = 0.060) and a significant three-way-interaction between DRD4, maternal regulation, and age (F(1,83) = 5.08, p = 0.027, η2 = 0.056).