Evidence map›Paper›PMID 41984769›Full record

ArticlePloS one2026

Psychology at the screen: Investigating the current VAR protocol.

Daniel Walker, Cara E Staniforth, Jordan Thomas, Fallon Parker, Usman Khizar, Nathaniel J Lawton, Tamryn Vermaak, Jade L Jukes

Abstract read
In one paragraph

Article in PloS one, 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

8 authors.

Daniel WalkerUniversity of Bradford, Bradford, United Kingdom.ORCID https://orcid.org/0000-0002-9369-6953
Cara E StaniforthUniversity of Bradford, Bradford, United Kingdom.
Jordan ThomasNHS Talking Therapies Liverpool, Liverpool, United Kingdom.
Fallon ParkerUniversity of Bradford, Bradford, United Kingdom.
Usman KhizarUniversity of Bradford, Bradford, United Kingdom.
Nathaniel J LawtonUniversity of Bradford, Bradford, United Kingdom.
Tamryn VermaakManchester Metropolitan University, Manchester, United Kingdom.
Jade L JukesUniversity of Bradford, Bradford, United Kingdom.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to investigate the psychological process of the current Video Assistant Referee (VAR) protocol by calculating, i) the prevalence of overturn/maintain decisions by the referee at the pitch-side monitor, ii) the likelihood that the referee would overturn their decision based on external factors, iii) the likelihood that the VAR would intervene based on external factors. 1520 matches were reviewed across 2021/22-2024/25 seasons in the English Premier League where the referee was advised to consult the pitch-side monitor 250 times, overturning their original decision 95% of the time. Binary Logistic Regression found that external factors did not predict the referee's decision or VAR intervention. The high prevalence of overturn decisions may be expected as referees are being advised to review potential errors and interestingly maintain decisions were more prevalent when related to the home team, potentially due to proximity bias of the home crowd.

Identifiers

PMID41984769
PMCPMC13082606

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.