Claims

In Experiment 1, overall final-test recall was lower in the blocked 50% group than in the random 25% group (d = 0.40), an exploratory between-groups difference.

Claim · All claims
Evidence · 1 study · causal r3 · q3 · i2 medium
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 i2 The blocked 50% group recalled less overall at final test than the random 25% group (d = 0.40), but did not differ significantly from the random 75% group. → Higham 2023

Evidence

Higham 2023

Higham, P. A., Fastrich, G. M., Potts, R., Murayama, K., Pickering, J. S., & Hadwin, J. A. (2023). Spaced Retrieval Practice: Can Restudying Trump Retrieval? Educational Psychology Review. https://doi.org/10.1007/s10648-023-09809-2

q3 · i2 · causal · r3

Exploratory corrected between-groups t-tests breaking down the significant main effect of group in Experiment 1 (n = 259), with printed effect size d = 0.40: "the blocked 50% group (M = 0.59, SD = 0.24) produced worse recall compared to the random 25% group (M = 0.69, SD = 0.23)". The random groups did not differ significantly.

"These tests showed that the blocked 50% group (M = 0.59, SD = 0.24) produced worse recall compared to the random 25% group (M = 0.69, SD = 0.23), t(170) = 2.62, p < 0.010, d = 0.40, BF10 = 3.83; a = 0.017"

Discussion

Page metadata
Field Value
type claim
id blocked-list-structure-worse-final-recall
title In Experiment 1, overall final-test recall was lower in the blocked 50% group than in the random 25% group (d = 0.40), an exploratory between-groups difference.
description In Experiment 1, overall final-test recall was lower in the blocked 50% group than in the random 25% group (d = 0.40), an exploratory between-groups difference.
status review
evidence_strength weak
newest_evidence 2023
generated by process:wiki-ingest on 2026-10-22
trust unverified — no one has confirmed this page's content
sources 1 — higham-2023

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