Table 7:
Hierarchical Regression Analyses of Change in Program Components and Psychological Mediators in Study 2
| Time 2 Science/Engineering
Self-Efficacy |
Time 2 Team/Lead
Self-Efficacy |
Time 2 Identity as a
Scientist/Engineer |
Time 2 Commitment |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R2 | b* | sr2 | R2 | b* | sr2 | R2 | b* | sr2 | R2 | b* | sr2 | |
| Step 1: Initial Level | .18 | .43** | .43 | .32 | .57*** | .57 | .41 | .64*** | .64 | .36 | .60*** | .60 |
| Step 2: Program Components | .47 | .38 | .46 | |||||||||
| Initial Level | .71*** | .59 | .57*** | .52 | .72*** | .66 | ||||||
| Δ Research Experience | −.06 | −.04 | −.09 | −.06 | −.02 | −.01 | ||||||
| Δ Inst. Mentoring | .17 | .12 | −.05 | −.04 | .10 | .07 | ||||||
| Δ Socio Mentoring | .17 | .15 | .22 | .18 | .07 | .06 | ||||||
| Δ Community Involvement | .52** | .36 | .09 | .06 | .02 | .01 | ||||||
| Δ Academic Support | −.06 | −.05 | .13 | .10 | .16 | .13 | ||||||
| Δ Financial Support | −.17 | −.15 | −.09 | −.08 | −.18 | −.16 | ||||||
| Step 2: Psychological Mediators | .52 | |||||||||||
| Initial Level | .58*** | .58 | ||||||||||
| Δ Science/Engineering SE | .08 | .08 | ||||||||||
| Δ Team & Leader SE | .15 | .13 | ||||||||||
| Δ Identity as a Scientist/Engineer | .28** | .25 | ||||||||||
Note. Δ = difference score between Time 1 and Time 2. The Initial Level variable is different for each regression, and represents the Time 1 value for the dependent variable (e.g., for the first regression, Initial Level is Time 1 science/engineering self-efficacy)
**p < .01
***p < .001