Claims

In a within-subjects category-learning experiment, students reported higher mental effort and lower concurrent judgments of learning during interleaved than during blocked studying

Claim · All claims
Evidence · 1 study · causal r2 · q3 · i3 large
Currency · newest study 2023 · not yet checked against its sources · not reviewed by a person

Subclaims

Reading the evidence codes

q is the design tier, i the impact, n the sample, and the kind with its r the rigour judged within that kind: what each code means.

This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.

q3 i3 Students rated blocked studying as less effortful than interleaved studying (d = -1.79) and felt they learned more during blocked than interleaved studying (d = 1.69). → Janssen 2023

Evidence

Janssen 2023

Janssen, E. M., van Gog, T., van de Groep, L., de Lange, A. J., Knopper, R. L., Onan, E., Wiradhany, W., & de Bruin, A. B. H. (2023). The Role of Mental Effort in Students' Perceptions of the Effectiveness of Interleaved and Blocked Study Strategies and Their Willingness to Use Them. Educational Psychology Review. https://doi.org/10.1007/s10648-023-09797-3

q3 · i3 · causal · r2

Experiment 1 (N = 150, within-subjects, paired t-tests after each study unit) showed blocked studying was rated "less effortful" than interleaved studying, t(149) = -21.93, p < 0.001, Cohen's d = -1.79; concurrent judgments of learning were also higher for blocked (d = 1.69).

"students reported blocked studying as being less effortful (M = 3.97, SD = 1.06) than interleaved studying (M = 6.26, SD = 1.19), t(149) = -21.93, p < 0.001, Cohen's d = -1.79"

Discussion

Page metadata
Field Value
type claim
id interleaved-higher-effort-lower-jol-within-subjects
title In a within-subjects category-learning experiment, students reported higher mental effort and lower concurrent judgments of learning during interleaved than during blocked studying
description In a within-subjects category-learning experiment, students reported higher mental effort and lower concurrent judgments of learning during interleaved than during blocked studying
status review
evidence_strength moderate
newest_evidence 2023
generated by process:wiki-ingest on 2026-10-22
trust unverified — no one has confirmed this page's content
sources 1 — janssen-2023

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