Table S3.
Social belonging and engineering self-efficacy mediate the relation between mentor condition and engineering career aspirations
| Independent variable (X) | Multiple mediators (M) | Dependent variable (Y) | a paths | b paths | c path | a*b path indirect effects for ΔM1, ΔM2, ΔM3 | a*b 95% CI using ΔM1, ΔM2, ΔM3 | |
| X → ΔM1 | ΔM1 → ΔY | X → ΔY | ||||||
| X → ΔM2 | ΔM2 → ΔY | LLCI | ULCI | |||||
| X → ΔM3 | ΔM3 → ΔY | |||||||
| Female mentor vs. no mentor | Belonging (M1) | Engineering career aspirations | 0.58 (0.27)* | 0.41 (0.07)*** | −1.19 (0.98) | 0.24 (0.12)* | 0.03 | 0.49 |
| Self-efficacy (M2) | 0.65 (0.25)** | 3.95 (0.12)*** | 2.58 (0.98)** | 0.65 | 4.49 | |||
| Threat/challenge (M3) | −0.26 (0.14)† | 6.94 (0.18)*** | −1.77 (0.93)† | −3.59 | 0.05 | |||
| Female vs. male mentor | Belonging (M1) | Engineering career aspirations | 0.55 (0.26)* | 0.41 (0.08)*** | −0.87 (0.96) | 0.22 (0.11)* | 0.02 | 0.46 |
| Self-efficacy (M2) | 0.32 (0.24) | 3.95 (0.12)*** | 1.27 (0.96) | −0.61 | 3.14 | |||
| Threat/challenge (M3) | −0.10 (0.13) | 6.94 (0.18)*** | −0.71 (0.91) | −2.50 | 1.08 | |||
| Male mentor vs. no mentor | Belonging (M1) | Engineering career aspirations | 0.03 (0.27) | 0.41 (0.07)*** | −0.32 (0.22) | 0.01 (0.11) | −0.21 | 0.24 |
| Self-efficacy (M2) | 0.33 (0.25) | 3.95 (0.12)*** | 1.31 (0.98) | −0.61 | 3.24 | |||
| Threat/challenge (M3) | −0.15 (0.13) | 6.94 (0.18)*** | −1.06 (0.93) | −2.90 | 0.75 | |||
Note: †P < 0.10, *P < 0.05, **P < 0.01, and ***P < 0.001; values for a, b, c, and a*b paths are unstandardized slopes with SEs in parentheses.