- Article
Charting the Pathway to STEM: How Middle School Socialization and Science Growth Trajectories Predict Adult Career Success
- Jerf W. K. Yeung,
- Herman H. M. Lo and
- Lili Xia
- + 2 authors
Middle school is a critical period for science education, yet the collective impact of socialization agents on students’ longitudinal science learning trajectories and subsequent STEM careers remains underexplored. This study investigates how seventh-grade (typically aged 12–13) socialization agents—parental educational encouragement, peer academic support, constructive school learning environment, and student self-esteem—collectively shape the developmental growth trajectories of science performance throughout middle school and predict the attainment of a college STEM degree and later engagement in STEM professions in adulthood. Using five-wave longitudinal data from the Longitudinal Study of American Youth (LSAY, N = 3116), we employed latent growth curve modeling (LGCM) to analyze these relationships. Results indicated that all four grade-7 socialization agents significantly predicted a higher initial level of science achievement. In addition, parental encouragement and a constructive school learning environment also predicted a positive growth rate of science achievement. Furthermore, both the initial level and growth of science performance significantly predicted successful graduation with a STEM degree. These middle school science trajectories, along with obtaining a STEM degree, sequentially mediated the relationships between the grade-7 socialization agents and adult STEM career engagement. The findings underscore the necessity of educational policies and interventions that foster a synergistic pro-learning socialization context in middle school to bolster students’ science education and pave the way for long-term STEM success.
21 January 2026



![Graphic display of the hypothesized longitudinal relationships between grade-7 socialization agents, students’ developmental and growth trajectories of science performance in middle school, and STEM development in adulthood. Note: The H1a to H3 hypotheses represent direct effects, and the H4a to H5d hypotheses in parentheses are the indirect effects. ScPerf is students’ science performance in middle school. The measures of students’ integrated science performance scores from grade 7 to grade 9 are treated as the multiple indicators to project the developmental and growth trajectories of students’ science performance during middle school, in which they are all fixed to 1 and loaded on the intercept factor to represent the developmental trajectory of students’ science performance in middle school, and are set as [0, 1, 2] for the equal time intervals and loaded on the slope factor to connote the growth trajectory of students’ science performance across middle school. More detailed explanations of the modeling procedures are discussed in the section ‘Modeling Procedures’.](https://mdpi-res.com/education/education-16-00166/article_deploy/html/images/education-16-00166-g001-550.jpg)




