Betweenness centrality shows the least consistent correlation with performance, being largely insignificant or negative across configurations except in one course¶

Claim · All claims
Evidence · 1 study · associational r2 · q3
Currency · newest study 2020 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Betweenness centrality was positively and significantly correlated with performance only in course C8 in the multigraph configuration, negatively and significantly correlated in four courses in that configuration, and insignificant in all courses when normalized simplified. → Mohammed Saqr 2020

Evidence¶

Mohammed Saqr 2020¶

Mohammed Saqr, et al. (2020). Capturing the participation and social dimensions of computer-supported collaborative learning through social network analysis: which method and measures matter? International Journal of Computer-Supported Collaborative Learning 15:227–248. https://doi.org/10.1007/s11412-020-09322-6

q3 · i? · associational · r2

Observational analysis of betweenness centrality correlations with performance across the 12 courses in all three configurations. Only C8 was positively significant in the multigraph configuration ("r = 0.35, p < 0.01"); other configurations showed negative or insignificant correlations, and simplified normalized betweenness was statistically insignificant in all courses.

"betweenness centrality in all configurations was largely inconsistent, showing only C8 as positively and significantly correlated with student performance in the multigraph configuration (r = 0.35, p < 0.01)"

Discussion¶

Related Claims¶

• Multigraph closeness centrality is the most consistent of the three configurations for correlating closeness with performance, though less robust than degree and eigenvector centralities
• Courses with a low number of forum interactions show inconsistent participation-dimension results, while eigenvector centrality remains robust there.
• Multigraph indegree centrality is consistently and positively correlated with student performance across 12 PBL courses, with stronger correlations than other configurations in eight courses
• Multigraph outdegree centrality is the most robust participation indicator, with significant positive correlations in all courses, while weighted outdegree was negatively correlated in two courses
• Prior SNA studies of centrality-achievement links in CSCL show inconsistent, mostly small-sample results, with betweenness and closeness the most inconsistent measures — related
• In a correlation meta-analysis across 69 course offerings, diffusion-based centralities correlated with academic achievement with high combined coefficients and predictive intervals — related