Table 2.

Mean Pretest Score, Mean Post-Test Score, and Mean Difference, by Demographic Group (N=855)

Demographic group	Pretest score, mean (95% CI)	Post-test score, mean (95% CI)	Difference, mean (95% CI)	p
Overall	3.88 (3.79 to 3.96)	4.47 (4.42 to 4.52)	0.59 (0.51 to 0.66)	<0.0001
Geographic location
Georgia	3.42 (3.18 to 3.66)	4.30 (4.18 to 4.43)	0.88 (0.63 to 1.13)	<0.0001
United States, outside of Georgia	3.95 (3.86 to 4.04)	4.50 (4.45 to 4.56)	0.55 (0.47 to 0.64)	<0.0001
Outside of United States	4.00 (3.65 to 4.35)	4.27 (3.92 to 4.62)	0.27 (−0.02 to 0.57)	0.0693
Gender
Woman	3.94 (3.33 to 4.03)	4.52 (4.48 to 4.57)	0.58 (0.50 to 0.66)	<0.0001
Nonbinary, gender nonconforming	3.50 (2.61 to 4.39)	4.33 (3.95 to 4.71)	0.83 (0.12 to 1.55)	0.0229
Man	3.54 (3.33 to 3.75)	4.16 (3.98 to 4.34)	0.62 (0.41 to 0.83)	<0.0001
Age (years)
Under 20	3.08 (2.68 to 3.48)	4.39 (4.19 to 4.60)	1.32 (0.85 to 1.78)	<0.0001
20–24	3.77 (3.60 to 3.94)	4.61 (4.51 to 4.71)	0.84 (0.68 to 1.00)	<0.0001
25–29	3.83 (3.69 to 3.98)	4.42 (4.34 to 4.50)	0.59 (0.45 to 0.73)	<0.0001
30–34	4.16 (4.02 to 4.30)	4.56 (4.47 to 4.64)	0.39 (0.27 to 0.52)	<0.0001
35 or older	3.68 (3.64 to 4.08)	4.20 (4.03 to 4.37)	0.34 (0.14 to 0.54)	<0.0001
Race/ethnicity
Black, African American	3.84 (3.74 to 3.94)	4.50 (4.45 to 4.56)	0.66 (0.57 to 0.76)	<0.0001
Latinx, Latina/o Hispanic	4.40 (3.95 to 4.85)	4.85 (4.64 to 5.10)	0.46 (0.07 to 0.83)	0.0199
Asian, Pacific Islander	2.85 (2.14 to 3.55)	3.61 (2.99 to 4.24)	0.77 (0.24 to 1.30)	0.0044
Native American, Indigenous	2.84 (2.29 to 3.39)	4.63 (4.37 to 4.89)	1.79 (1.08 to 2.50)	<0.0001
White, Caucasian	4.06 (3.91 to 4.22)	4.37 (4.27 to 4.47)	0.30 (0.16 to 0.45)	<0.0001
Multiracial	3.56 (3.11 to 4.00)	4.56 (4.23 to 4.88)	1.00 (0.56 to 1.44)	<0.0001

CI, confidence interval.