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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Am J Orthopsychiatry. 2015 Sep;85(5):452–468. doi: 10.1037/ort0000087

Table 3.

Interpretation of Time Interactions with Parental Substance Use Conviction

Difference in Difference: (Children of parents who were convicted of a substance-related offense vs. never convicted)

Comparison time periods Math
Change (Std. Err)
Reading
Change (Std. Err)
Chronic Absenteeism
Change (Std. Err)
Year of “conviction” vs. year before “conviction” −0.007 (0.004) −0.008 (0.004) −0.005b (0.001)
1 year post-“conviction” vs. year of “conviction” −0.147a (0.003) −0.008 (0.004) −0.001 (0.001)
2 years post-“conviction” vs. 1 year post-“conviction” −0.007 (0.004) 0.000 (0.004) 0.001 (0.002)
3 years post-“conviction” vs. 2 years post-“conviction” −0.133b (0.004) −0.006 (0.004) 0.00 (0.002)
a

p<0.001,

b

p<0.01,

c

p<0.05