Normative face recognition ability test scores vary across online participant pools

Abstract Online participant recruitment is a cornerstone of modern psychology research. While this offers clear benefits for studying individual differences in cognitive abilities, test performance can vary across lab-based and web-based settings. Here we assess the stability of normative test score...

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Main Authors: B. Popovic, J. D. Dunn, A. Towler, D. White
Format: Article
Language:English
Published: Nature Portfolio 2025-03-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-92907-8
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author B. Popovic
J. D. Dunn
A. Towler
D. White
author_facet B. Popovic
J. D. Dunn
A. Towler
D. White
author_sort B. Popovic
collection DOAJ
description Abstract Online participant recruitment is a cornerstone of modern psychology research. While this offers clear benefits for studying individual differences in cognitive abilities, test performance can vary across lab-based and web-based settings. Here we assess the stability of normative test scores across popular online recruitment platforms and in-person testing, for three standard measures of face identity processing ability: the GFMT2, CFMT+ , and MFMT. Participants recruited via Amazon Mechanical Turk (MTurk) scored approximately 10 percentage points lower in all tests compared to those recruited through Prolific and university students tested in the lab. Applying stricter exclusion criteria based on attention checks resulted in notably higher exclusion rates for the MTurk group (~ 62%) compared to the Prolific group (~ 22%), yet even after exclusion, some test scores remained lower for MTurk participants. Given that the GFMT2 subtests were developed using MTurk participants, we provide updated normative scores for all subtests (GFMT2-Short, GFMT2-Low, GFMT2-High) and further recommendations for their use. We also confirm the robust psychometric properties of the GFMT2-Short and GFMT2-High, demonstrating strong test–retest reliability, convergent validity with other established tests, and high diagnostic value in identifying super-recognisers. The GFMT2 subtests are freely available for use in both online and in-person research via www.gfmt2.org .
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spelling doaj-art-42ddf4fffc524b138d38b6cb15a7c3332025-08-20T03:04:49ZengNature PortfolioScientific Reports2045-23222025-03-0115111110.1038/s41598-025-92907-8Normative face recognition ability test scores vary across online participant poolsB. Popovic0J. D. Dunn1A. Towler2D. White3School of Psychology, The University of New South WalesSchool of Psychology, The University of New South WalesSchool of Psychology, The University of QueenslandSchool of Psychology, The University of New South WalesAbstract Online participant recruitment is a cornerstone of modern psychology research. While this offers clear benefits for studying individual differences in cognitive abilities, test performance can vary across lab-based and web-based settings. Here we assess the stability of normative test scores across popular online recruitment platforms and in-person testing, for three standard measures of face identity processing ability: the GFMT2, CFMT+ , and MFMT. Participants recruited via Amazon Mechanical Turk (MTurk) scored approximately 10 percentage points lower in all tests compared to those recruited through Prolific and university students tested in the lab. Applying stricter exclusion criteria based on attention checks resulted in notably higher exclusion rates for the MTurk group (~ 62%) compared to the Prolific group (~ 22%), yet even after exclusion, some test scores remained lower for MTurk participants. Given that the GFMT2 subtests were developed using MTurk participants, we provide updated normative scores for all subtests (GFMT2-Short, GFMT2-Low, GFMT2-High) and further recommendations for their use. We also confirm the robust psychometric properties of the GFMT2-Short and GFMT2-High, demonstrating strong test–retest reliability, convergent validity with other established tests, and high diagnostic value in identifying super-recognisers. The GFMT2 subtests are freely available for use in both online and in-person research via www.gfmt2.org .https://doi.org/10.1038/s41598-025-92907-8Cambridge face memory testGlasgow face matching testCongenital prosopagnosiaDevelopmental prosopagnosiaFace processingFace recognition
spellingShingle B. Popovic
J. D. Dunn
A. Towler
D. White
Normative face recognition ability test scores vary across online participant pools
Scientific Reports
Cambridge face memory test
Glasgow face matching test
Congenital prosopagnosia
Developmental prosopagnosia
Face processing
Face recognition
title Normative face recognition ability test scores vary across online participant pools
title_full Normative face recognition ability test scores vary across online participant pools
title_fullStr Normative face recognition ability test scores vary across online participant pools
title_full_unstemmed Normative face recognition ability test scores vary across online participant pools
title_short Normative face recognition ability test scores vary across online participant pools
title_sort normative face recognition ability test scores vary across online participant pools
topic Cambridge face memory test
Glasgow face matching test
Congenital prosopagnosia
Developmental prosopagnosia
Face processing
Face recognition
url https://doi.org/10.1038/s41598-025-92907-8
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AT atowler normativefacerecognitionabilitytestscoresvaryacrossonlineparticipantpools
AT dwhite normativefacerecognitionabilitytestscoresvaryacrossonlineparticipantpools