marginally significantp = 0.051
Moreover, the simple main effects of flow direction on the 4–6- and 7–9-month-old infants and on the adults were significant ( F (1,114) = 26.52, p < 0.001, η p 2 = 0.19; F (1,114) = 19.71, p < 0.001 , η p 2 = 0.15; and F (1,114) = 10.75, p = 0.002 , η p 2 = 0.09; respectively); it was marginally significant on the 10–12-month-olds ( F (1,114) = 3.89, p = 0.051 , η p 2 = 0.13).