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. Author manuscript; available in PMC: 2014 Jun 1.
Published in final edited form as: Am J Prev Med. 2013 Jun;44(6):622–630. doi: 10.1016/j.amepre.2013.01.030

Table 1.

Baseline and follow-up equivalence on school demographics

Year
2001
Year
2004
Year
2007
Year
2010
Control Schools Positive Action
Schools
df=12 Control Schools Positive Action
Schools
df=12 Control Schools Positive Action
Schools
df=12 Control Schools Positive Action
Schools
df=12
n=7 n=7 n=7 n=7 n=7 n=7 n=7 n=7
% M SD M SD t M SD M SD t M SD M SD t M SD M SD t
Male Students 52.70 1.98 52.00 0.98 0.84 52.64 2.89 52.47 2.11 0.13 52.03 2.35 50.90 2.17 0.93 52.09 2.42 52.10 2.22 0.00
White
Students
10.51 16.75 9.58 13.07 0.12 9.38 14.80 9.07 12.68 0.04 7.93 13.18 7.00 10.62 0.15 8.57 13.81 7.49 11.53 0.16
African-
American
Students
55.21 43.91 52.07 48.01 0.13 56.49 43.35 53.64 47.35 0.12 56.73 42.67 55.31 47.10 0.06 56.20 41.64 55.57 47.79 0.03
Hispanic
Students
27.27 32.10 32.23 34.23 −0.28 31 35.16 32.79 36.28 −0.09 31.04 33.76 31.33 35.71 −0.02 31.8 34.07 32.63 38.94 −0.40
Asian
American
Students
4.03 6.17 4.69 7.05 −0.19 2.91 4.30 4.21 6.57 −0.44 2.74 4.45 3.91 7.00 −0.37 3.36 5.94 4.17 7.61 −0.22
“Other”
Students
3.91 4.60 4.64 4.92 −0.29 4.46 5.03 4.72 5.21 −0.10 4.63 5.05 4.45 5.19 .063 0.04 0.03 0.02 0.05 −0.40
Students with
LEP
14.27 16.13 17.50 16.94 −0.37 11.41 14.10 17.04 17.20 −0.67 12.50 13.82 14.61 16.32 −0.26 10.87 11.92 12.87 14.78 −0.28
Students with
an IEP
13.00 6.37 8.70 2.31 1.67 12.84 5.33 9.46 2.36 1.53 14.08 6.46 9.86 3.23 1.55 14.76 6.01 12.06 3.73 1.01
Students
Receiving a
Free Lunch
83.59 3.39 83.09 6.85 0.17 81.46 3.81 85.51 4.56 −1.81 85.86 7.86 84.97 7.36 0.22 94.60 3.92 92.70 6.30 0.68
School
Attendance
Rate
93.01 1.17 93.38 1.28 −0.57 93.54 1.09 93.74 1.79 −0.25 92.87 2.09 93.71 1.78 −0.84 93.27 1.87 95.03 1.52 −2.01

Note: 2001 data were used for the matching before randomization, 2004 was the first year of the trial, 2007 was when cohort students ended Grade 5, and 2010 was the last year of the study. Other= percentages for those with race classified as: Native American, multirace, Mexican, Puerto Rican, Cuban, other Hispanic, and multi-Hispanic. At 2010, only information for % Native Americans was available. None of the above t-test were significant at the p<0.05 level.

LEP= Limited English Proficiency, IEP= Individualized Education Plan. For School Attendance Rate, df=13. Adapted from Lewis KM, Bavarian N, Snyder FJ, Acock A, Day J, DuBois DL, et al. Direct and mediated effects of a socialemotional and character development program on adolescent substance use. Int J of Emotional Educ. 2012;4:56-78; reprinted with permission