• = 12.69, range = 4 to 52; z = –0.004, p = .99), and mode (i.e. aerobic, resistance or both) did not mod- erate the size of the effect: QB(2) = 1.47, p = .47. Frequency per week of exercise (M frequency = 2.81, range = 1 to 5), however, did moderate the size of the effect, with larger effects evidenced for interven- tions of higher frequency per week (z = 2.50, p = .01).