Claims

Reminder and control groups did not differ in vocabulary test performance, and the test data were too noisy to reliably test the study-frequency–performance link

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 2024 · 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 i? The Reminder Group did not outperform the Control Group on vocabulary tests (b = 0.05, p = 0.829). → Lea Nobbe 2024

Evidence

Lea Nobbe 2024

Lea Nobbe, Jasmin Breitwieser, Daniel Biedermann & Garvin Brod. (2024). Smartphone-based study reminders can be a double-edged sword. npj Science of Learning 9:40. https://doi.org/10.1038/s41539-024-00253-7

q3 · i? · causal · r2

Linear mixed-effects model on vocabulary test scores (percentage correct, weighted by test length) from one to four tests per participant in the intervention study. The article reports the Reminder Group "did not outperform students in the Control Group" (p = 0.829); no effect size is printed.

"students in the Reminder Group also did not outperform students in the Control Group in the vocabulary tests (b = 0.05, 95% CI [−0.38, 0.47], χ2(1) = 0.05,p = 0.829)."

Discussion

Page metadata
Field Value
type claim
id no-group-difference-vocabulary-test-performance
title Reminder and control groups did not differ in vocabulary test performance, and the test data were too noisy to reliably test the study-frequency–performance link
description Reminder and control groups did not differ in vocabulary test performance, and the test data were too noisy to reliably test the study-frequency–performance link
status review
evidence_strength weak
newest_evidence 2024
generated by process:wiki-ingest on 2026-10-26
trust unverified — no one has confirmed this page's content
sources 1 — lea-nobbe-2024

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