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. 2013 Oct 2;8(10):e72008. doi: 10.1371/journal.pone.0072008

Table 2. Nutrition Report Card Reduces Cookie Selection, but Does Not Significantly Change Ice Cream or Chip Selection.

Difference-in- difference estimates of effect of NRC on selection
Cookies Ice Cream Chips†
n = 1495 n = 1495 n = 633
Variable t = 59490 t = 59490 t = 23270
Treated*Post Treatment −0.070** 0.008 −0.026
(0.033) (0.013) (0.035)
Treated Group 0.030 −0.014 −0.017
(0.036) (0.017) (0.041)
Post Treatment −0.008 0.005* −0.024***
(0.005) (0.003) (0.005)
Constant 0.113 0.090 0.106
(0.007) (0.004) (0.012)

OLS Coefficients reported, robust standard errors clustered by individual. †Chips only available to students in grades 7–12.

***

p<0.01.

**

p<0.05.

*

p<0.10.