Table 3 Standardized results of unconditional latent growth curve model (Unconditional LGCM) for youths’ science performance (Model 1B).

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

Intercept factor

Intercept Factor Loadings

SE

95% CI

Grade 7

0.964***

0.013

0.939–0.988

Grade 8

0.908***

0.011

0.887–0.929

Grade 9

0.904***

0.016

0.872–0.935

Slope factor

Slope Factor Loadings

SE

95% CI

Grade 7

0.000

0.000

—

Grade 8

0.292***

0.012

0.263–0.316

Grade 9

0.581***

0.026

0.530–0.633

Model parameters

Model Parameters

SE

95% CI

Intercept and slope Covariance

−0.0134***

0.031

−0.0195 to −0.073

Intercept variance

97.419***

4.229

89.130–105.709

Slope variance

10.080***

1.044

8.033–12.126

  1. For model fit, CFI = 1.000, RMSEA = 0.000, SRMR = 0.000.
  2. *p < 0.05, **p < 0.01, ***p < 0.001.
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