Evidence map›Paper›PMID 42625863›Full record

ArticleFrontiers in psychology2026

Guidance for data analysis in split-plot designs when parametric assumptions are violated:

María J Blanca, Rafael Alarcón, Roser Bono, Jaume Arnau, F Javier García-Castro, Guillermo Vallejo

Abstract read
In one paragraph

Article in Frontiers in psychology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

María J BlancaDepartment of Psychobiology and Behavioral Sciences Methodology, University of Malaga, Málaga, Spain.
Rafael AlarcónDepartment of Psychobiology and Behavioral Sciences Methodology, University of Malaga, Málaga, Spain.
Roser BonoDepartment of Social Psychology and Quantitative Psychology, University of Barcelona, Barcelona, Spain.
Jaume ArnauDepartment of Social Psychology and Quantitative Psychology, University of Barcelona, Barcelona, Spain.
F Javier García-CastroDepartment of Psychology, Universidad Loyola Andalucia, Seville, Spain.
Guillermo VallejoDepartment of Psychology, University of Oviedo, Oviedo, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Data analysis of split-plot designs requires normality, homogeneity of variance, and multisample sphericity. Adjusted Method: To analyze the Type I error of the Results: With balanced designs, the results show that for the group effect the Discussion: The paper identifies the conditions under which each procedure can be used. Overall,

Indexed as

anovabootstrapGreenhouse-Geisser adjustmentHuynh-Feldt adjustmentrepeated measures

Identifiers

PMID42625863
PMCPMC13490978

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.