Table 1. Demographic information of participants.
Before quality assurance measures (N = 161) | ||||||
|---|---|---|---|---|---|---|
control | upward | downward | mixed | H value\(^a\) | p value | |
N | 40 | 40 | 40 | 41 | ||
Gender\(^{b,c}\) | 20f/20m | 20f/20m | 20f/20m | 20f/19m/1nb | 0.018 | .999 |
Age (Mdn)\(^{b,d}\) | 35–44y | 35–44y | 25–34y | 25–34y | 5.091 | .165 |
After quality assurance measures (N = 158) | ||||||
control | upward | downward | mixed | H value\(^a\) | p value | |
N | 40 | 39 | 38 | 41 | ||
Gender\(^{b,c}\) | 20f/20m | 20f/19m | 19f/19m | 20f/19m/1nb | 0.214 | .975 |
Age (Mdn)\(^{b,d}\) | 35–44y | 35–44y | 25–34y | 25–34y | 7.388 | .061 |