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. 2013 Sep;74(5):720–726. doi: 10.15288/jsad.2013.74.720

Figure 2.

Figure 2

Means and standard errors for injunctive norms by frequency of self-use. Compared with infrequent users, weekly users endorsed significantly more positive injunctive norms regarding friends, F(1, 220) = 84.23, p < .001, d = 1.25, and parents, F(1, 220) = 18.98, p < .001, d = 0.59.