Table 6.
Dependent variables | Summer sample (N=390) | Academic year sample (N=289) | ||||
---|---|---|---|---|---|---|
HE | NHE | Cliff’s d | HE | NHE | Cliff’s d | |
First three problems only | N = 201 | N = 189 | N = 141 | N = 148 | ||
Total regular-hint count | 0.00 ∗∗ | 0.00 ∗∗ | .48 | 0.00 ∗∗ | 0.00 ∗∗ | .37 |
Total bottom-out-hint count | 0.00 | 0.00 | .13 | 0.00 ∗∗ | 10.00 ∗∗ | .27 |
Problems with hints | 0.00 | 0.00 | .03 | 0.00 ∗∗ | 10.00 ∗∗ | .19 |
Remaining problems only | N = 128 | N = 123 | N = 80 | N = 91 | ||
Total regular-hint count | 0.00 | 0.00 | .38 | 0.00 | 0.00 | .49 |
Total bottom-out-hint count | 0.00 | 0.00 | .37 | 0.00 | 0.00 | .42 |
Problems with hints | 0.00 | 0.00 | .39 | 0.00 † | 0.00 † | .13 |
Note: Fewer students answered remaining problems due to Skill Builder completion or attrition; HE - hints early condition; NHE - no-hints-early condition; †p<0.1, ∗p<.05, ∗∗p<.01