Table 1.
Independent Samples t-test of parent involvement by income.
| Mean Parent Involvement | t | df | |
| Low income | 9.0 | 0.47617 *** | 49.86 |
| High income | 9.2 |
The mean parent involvement scores for low-income households was 9 out of 10 and the mean parent involvement score for high income households was 9.2 out of 10. The t-test value was 0.47617 and it is significant at the .001 level. Therefore, the mean difference in parent involvement is significant by income.