Table 4 Standardized mediated effects of the slope and intercept factors of youths’ science performance and/or the slope factor of youths’ educational expectations on the relationship between the intercept factor of youths’ educational expectations and successful STEM degree completion (Model 3B).

From: Evolving trajectories of educational expectations and science performance during middle school and STEM degree attainment of youth in adulthood

No.

Mediational path

βind

SE

Z−value

95% CI

1

InpEdExp → InpScPef → STEM degree

0.055***

0.009

5.964

0.037–0.073

2

InpEdExp → SlpScPef → STEM Degree

0.007*

0.003

2.006

0.001–0.013

3

InpEdExp → InpScPef → SlpScPef → STEM degree

−0.003+

0.002

−1.757

−0.006–0.000

4

InpEdExp → SlpEdExp → SlpScPef → STEM degree

−0.001

0.001

−1.510

−0.003–0.000

5

Total indirect effect of InpEdExp → a STEM degree

0.058***

0.009

6.073

0.039–0.076

  1. All latent mediational analysis procedures were conducted simultaneously in the modeling interface of the PP-LGCM Model under the ‘Model Indirect’ Function in Mplus, and the contextual variables of youths’ gender, family composition, parental SES, and ethnicity were adjusted in the modeling procedures.
  2. InpEdExp Intercept Factor of Youths’ Educational Expectations, InpScPef Intercept Factor of Youths’ Science Performance, SlpEdExp Slope Factor of Youths’ Educational Expectations, SlpScPef Slope Factor of Youths’ Science Performance.
  3. +p < 0.1, *p < 0.05, **p < 0.01, ***p < 0.001.
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