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. Author manuscript; available in PMC: 2009 Aug 1.
Published in final edited form as: Eval Rev. 2009 Jun 8;33(4):370–395. doi: 10.1177/0193841X09337228

Table 3.

Impact of Active Consent on Sample Demographics.

Mean(SD)
Passive Active t d
Age 14.28(2.22) 13.51(2.18) −2.72* −.35
Grade 8.86(2.16) 8.09(2.13) −2.62* −.36
% Male 52.00(50.00) 44.44(50.00) −5.08* −.15
% Caucasian 95.28(40.88) 92.31(44.21) −1.04 −.07
% Lives w/ Mother & Father 52.19(50.00) 56.35(50.00) 1.53 .08
% Lives with Mother Only 15.89(48.16) 14.32(47.71) −1.30 −.03
% Lives with Father Only 3.56(38.85) 3.03(37.70) −.97 −.01
% Free/Reduced Lunch 48.76(50.00) 41.49(49.99) −.97 −.15

NOTE: Statistical significance tests based on 12 df.

*

p < .05