Student proportion of words spoken in whole-class talk increased in both dose groups after VSDR¶

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Both groups showed an increased percentage of student contributions: low dose 20.27% to 30.85%; high dose 13.98% to 25.98%. → Pengjin Wang · Fan Chen · Deliang Wang · Gaowei Chen 2025

Evidence¶

Pengjin Wang · Fan Chen · Deliang Wang · Gaowei Chen 2025¶

Pengjin Wang · Fan Chen · Deliang Wang · Gaowei Chen (2025). Enhancing students' dialogic reflection through classroom discourse visualisation. Intern. J. Comput.-Support. Collab. Learn. https://doi.org/10.1007/s11412-024-09443-2

q2 · i? · causal · r1

Analysis of recordings from the first two versus last two lessons (~30 min each) captured with a stationary camera. "the low-dose group’s contributions rose from 20.27% to 30.85%, whilst the high-dose group’s contributions increased"; teacher total words decreased in both groups. No statistical test or effect size is reported for this change.

"the low-dose group’s contributions rose from 20.27% to 30.85%, whilst the high-dose group’s contributions increased from 13.98% to 25.98%."

Discussion¶

Related Claims¶

• Despite longer AI-led sessions, the proportion of student-generated dialogue was markedly and significantly lower with the AI than with the teacher in both grades — related
• Only the high-dose VSDR group showed statistically significant improvement in ICT subject knowledge, from pre-test to post-test — related
• WTC decreases as class size increases on both talk-time and turns of talk — related