Duration of an average PLL session (50–180 minutes) did not significantly moderate the effect on cognitive achievement; the descriptive 60-versus-120-minute advantage did not generalise across durations¶

Claim · All claims
Evidence · 1 study (2 entries) · quant-synthesis r2 · q3
Currency · newest study 2019 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? No statistically significant relationship was found between session duration and the effect size (coefficient −0.001, p = 0.31); shorter sessions did not have significantly better effects than longer sessions. → Zha 2019 q3 i? Descriptively, groups in 60-minute sessions outperformed groups in 120-minute sessions by 0.2 standard deviation units, but this contrast held only between those two duration types; 50-minute studies showed a lower average ES than 120-minute sessions. → Zha 2019 (2)

Evidence¶

Zha 2019¶

Zha, Shenghua; Estes, Michele D.; and Xu, Ling. (2019). A meta-analysis on the effect of duration, task, and training in peer-led learning. Journal of Peer Learning, 12. https://ro.uow.edu.au/ajpl/vol12/iss1/2

q3 · i? · quant-synthesis · r2

Conditional meta-regression of session duration (50 to 180 minutes, k = 28): printed coefficient −0.001 (p = 0.31, 95% CI −0.003 to 0.001). The article states that across all durations, shorter sessions did not have significantly better effects than longer sessions.

"No statistical significance was found regarding variations in the duration of an average PLL session (Table 3 ). Among 28 studies, a PLL session was typically hosted for 60 or 120 minutes."

Zha 2019 (2)¶

Zha, Shenghua; Estes, Michele D.; and Xu, Ling. (2019). A meta-analysis on the effect of duration, task, and training in peer-led learning. Journal of Peer Learning, 12. https://ro.uow.edu.au/ajpl/vol12/iss1/2

q3 · i? · quant-synthesis · r2

Descriptive contrast between the two most common duration types in Table 3 (60 minutes, 9 studies; 120 minutes, 10 studies): 60-minute sessions outperformed 120-minute sessions by 0.2 standard deviation units, but no effect size for this specific contrast was printed, and the article notes it occurred only between those two duration types.

"Groups in 60-minute sessions outperformed groups in 120-minute sessions by 0.2 standard deviation units. However, when examined across all durations, shorter sessions did not have significantly better ES than longer sessions."

Discussion¶

Related Claims¶

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