TABLE 3.

Comparison of participant knowledge scores before and after animation viewing

Knowledge score (IQR, 1–8)	Pretest, mean ± SD	Posttest, mean ± SD	Change, %	z score	Effect size (R)a
Total cohort (n = 24)	5.7 ± 2.0	7.0 ± 1.4	23	3.34	0.48
Black race (n = 8)	4.8 ± 1.3	6.6 ± 1.1	38	2.41	0.60
Non-Black race (n = 16)	6.1 ± 2.1	7.2 ± 1.5	18	2.39	0.42
Education, less than college (n = 11)	5.6 ± 2.0	7.2 ± 0.9	29	2.39	0.51
Education, college level (n = 13)	5.8 ± 2.0	6.9 ± 1.7	19	2.39	0.47
<Median literacy/numeracy (n = 10)b	5.4 ± 2.3	7.1 ± 1.0	31	2.23	0.50
≥Median literacy/numeracy (n = 14)	5.9 ± 1.7	6.9 ± 1.6	17	2.55	0.48
Age ≥60 y (n = 9)	4.6 ± 2.3	6.4 ± 1.9	39	2.23	0.53
Age <60 y (n = 15)	6.3 ± 1.5	7.3 ± 0.8	16	2.55	0.47
Income ≤$50 000 (n = 9)	5.0 ± 2.6	6.7 ± 1.9	34	2.04	0.48
Income >$50 000 (n = 11)	5.8 ± 1.5	7.0 ± 1.0	21	2.41	0.51
Transplant candidate (n = 12)	4.8 ± 2.1	6.5 ± 1.7	35	2.41	0.49
Potential live kidney donor (n = 12)	6.6 ± 1.4	7.5 ± 0.8	14	2.41	0.49
<Median technology access (n = 5)c	5.6 ± 3.1	7.6 ± 0.5	36	1.34	0.42
≥Median technology access (n = 19)	5.7 ± 1.7	6.8 ± 1.5	19	3.12	0.51

^aEffect size, interpretation: 0.10 = small effect, 0.24 = medium effect, and 0.37 = large effect.

^bLow health literacy/numeracy was defined as a score <10 on the summed score of 4 items.

^cLow technology access was defined as a score <6 on the summed score of 6 items.

IQR, interquartile range.