Secondary Outcomes (explanation)
1. To measure students’ perceptions of 21st-century pedagogy in their classrooms, this study employed the *Students’ Perceptions of Pedagogy for 21st-Century Learning Instrument (S-POP-21)*, developed by Bray et al. (2023). The S-POP-21 index provides a structured framework for evaluating how frequently students experience teaching practices that foster 21st-century skills, including collaboration, communication, critical thinking, creativity, and technology integration.
Students responded to survey items assessing their classroom experiences with pedagogical approaches aligned with 21st-century learning. Each item captured the frequency with which teachers employed interactive, student-centered, and skill-based instructional methods. Responses were recorded on a 5-point Likert scale, ranging from 1 (Never) to 5 (Always).
For analytical purposes, responses were recoded into a binary variable:
0 (Disagreeing): Combined responses of 1 (Strongly Disagree), 2 (Disagree), and 3 (Neutral).
1 (Agreeing): Combined responses of 4 (Agree) and 5 (Strongly Agree).
Following Anderson (2008), an inverse covariance-weighted S-POP index was constructed to aggregate and analyze the data, ensuring a robust measure of students’ perceptions of 21st-century teaching practices.
2. The indices and sub-indices used to assess 21st-century skills were adapted from Bray (2020) and encompass six core competencies: Collaboration, Communication, Creativity, Self-Direction, Critical Thinking, and Technology. Each index represents a distinct dimension of students' skill development and is further broken down into sub-indices that measure specific facets of the respective skill.
Students self-reported their proficiency in these skills using a Likert scale (e.g., 1 = Strongly Disagree to 5 = Strongly Agree). For analytical clarity, responses were recoded into a binary variable:
0 (Disagreeing): Combined responses of 1 (Strongly Disagree), 2 (Disagree), and 3 (Neutral).
1 (Agreeing): Combined responses of 4 (Agree) and 5 (Strongly Agree).
Following Anderson (2008), an inverse covariance-weighted index was constructed for each sub-category within the six skill components to ensure robust measurement.
3. The Teacher Support Index (TSI) measures students’ perceptions of the support they receive from their teachers across key dimensions, including academic assistance, approachability, and classroom comfort. Higher scores on this index reflect stronger perceived teacher support.
Students rated each statement using a five-point Likert scale:
1 = Strongly Disagree
2 = Disagree
3 = Neutral
4 = Agree
5 = Strongly Agree
For analytical purposes, responses were recoded into a binary variable:
0 (Disagreeing): Responses of 1 (Strongly Disagree), 2 (Disagree), or 3 (Neutral).
1 (Agreeing): Responses of 4 (Agree) or 5 (Strongly Agree).
Following Anderson (2008), an inverse covariance-weighted TSI index was constructed to ensure a robust and reliable measure of teacher support.
Anderson, M.L. (2008). ‘Multiple inference and gender differences in the effects of early intervention: a re-evaluation of the Abecedarian, Perry Preschool, and Early Training projects’. Journal of the American Statistical Association 103, 1481–1495.
https://doi.org/10.1198/016214508000000841.