The learning benefits of perceptual disfluency reported by Diemand-Yauman et al. (2011) do not replicate in any general way¶

Claim · All claims
Evidence · 1 study · review r2 · q2
Currency · newest study 2016 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Across six studies in the special issue, the dramatic benefits of disfluency on educational outcomes reported by Diemand-Yauman et al. (2011) failed to replicate in any general way. → Bjork 2016

Evidence¶

Bjork 2016¶

Bjork, R. A., & Yue, C. L. (2016). Commentary: Is disfluency desirable? Metacognition Learning, 11, 133–137. https://doi.org/10.1007/s11409-016-9156-8

q2 · i? · review · r2

The authors' synthesis of the six special-issue studies, which collectively examined disfluency effects on metacognitive judgments, reading time, recall, and comprehension across varied materials and media. The commentary reports that the original findings "do not replicate, at least not in any general way."

"The conclusion from the impressive body of research reported in this special issue seems inescapable: The remarkable and intriguing benefits of disfluency reported by Diemand-Yauman et al. do not replicate, at least not in any general way."

Discussion¶

Related Claims¶

• Any positive effects of responding to disfluency are most likely to appear on later perceptual tasks, not content recall — related
• Disfluency increased study times without improving performance, suggesting time was spent deciphering text rather than processing contents more deeply — related
• In a pre-registered direct replication (N = 96), the disfluency × WMC interaction did not significantly predict retention, failing to replicate Lehmann et al. (2016) — related
• All 13 special-issue studies failed to show overall better performance due to disfluency — a broader claim this one bears on
• Working memory capacity moderated disfluency effects in one study but not another — related
• The null effect of the disfluency × WMC interaction on transfer replicated the primary study's null finding, with both studies showing negative coefficients — related
• Across the four existing experiments on WMC moderation of disfluency, results are inconsistent: one finds the effect restricted to high-span, one to low-span, and two find null moderation — related