Table 1. Regression of parent involvement by education.
| Involvement | Model 1 | Model 2 |
| Enjoyment | 0.5643*** | 0.56271 |
| Education (Less than College) | -0.07593 | |
| R2 | 0.2074 | 0.2112 |
The first independent variable is enjoyment of the activity measured on a scale of 0 to 10. 0 indicates no enjoyment, while 10 indicates a great amount of enjoyment. The second independent variable is the parent’s level of education. The original categories were as follows: “Some high school”, “High school diploma or GED”, “Certification from a trade or vocational school”, “Some college”, “Associate’s degree”, “Bachelor’s degree”, and “Graduate degree or more”. The categories have been re-coded into the two groups “Less than College” and “College and Above”. The categories from “Certification from trade or vocational school” and before were grouped into “Less than College”. The categories from “Some college” and after were grouped into “College and Above”. The dependent variable is engagement to the activity measured on a scale of 0 to 10. 0 means there was no engagement at all, whereas 10 means there was a great amount of engagement.
The first independent variable, enjoyment, was the only variable used in Model 1. In Model 2, both enjoyment and level of education, specifically the category of “Less than College”, were used. In Model 1, when enjoyment is compared against involvement, the value is 0.5643, which is significant at the p<.001*** level. The R2 of Model 1 is 0.2074; in Model 1, 20% of the variation in involvement is explained. The independent variable of enjoyment and the re-coded independent variable of education, specifically the category of “Less than College”, were both used in Model 2. In Model 2, the p-value of enjoyment is 0.56271 and the p-value of education is -0.07593; neither are significant. R2 in Model 2 equals 0.2112, meaning that 21% of the variation in involvement is explained. This adds 1% more from Model 1 by adding the variable of education.