Publication:
The Inventory of Problems–29 (IOP-29): a systematic review and bivariate diagnostic test accuracy meta-analysis.

Simple item page
dc.contributor.authorPina, David
dc.contributor.authorPuente López, Esteban
dc.contributor.authorLópez Nicolás, Rubén
dc.contributor.authorIguacel, Isabel
dc.contributor.authorArce, Ramón
dc.contributor.departmentPsiquiatría y Psicología Social
dc.date.accessioned2026-03-23T08:43:45Z
dc.date.available2026-03-23T08:43:45Z
dc.date.copyright© 2023 American Psychological Association
dc.date.issued2023-01-12
dc.description.abstractThe Inventory of Problems–29 (IOP-29) is a 29-item self-administered symptom validity test (SVT) that assesses the credibility of clinical presentations related to posttraumatic stress disorder, depression/anxiety, psychosis, cognitive impairment and combination thereof. To date, no publications have summarized the classification accuracy of the IOP-29 using a bivariate meta-analytical approach that preserves the two-dimensional nature of the estimators. Our objective was to conduct a systematic review and bivariate diagnostic test accuracy meta-analysis of the IOP-29 according to the relevant guidelines. Twenty-one independent samples were included, with a total sample size of 4,163 participants. The results indicated that the IOP-29 is able to discriminate adequately between instructed simulators and healthy controls/clinical patients. Using the recommended cutoff (False Disorder Probability Score [FDS], ≥ .50), a sensitivity of 82% was achieved, maintaining specificity at 93% (false positive rate of 7%). The language of the test and the type of comparison group have been identified as possible sources of heterogeneity. Specificity decreases for the non-English version of the IOP-29, for the FDS ≥ .30, and also decreases for studies using clinical controls, for all three cutoff scores. In general, our findings support the usefulness of the IOP-29 as an SVT; however, most of the included studies use a simulation design and have been coauthored by the test authors. Likewise, about half of the studies did not include bona fide patient controls but only nonclinical controls. The results obtained are highly promising, but further research, especially that using the criterion group paradigm, is recommended.
dc.formatapplication/pdf
dc.format.extent15
dc.identifier.citationPsychological Assessment, 2023, 35(4), 339–352
dc.identifier.doihttps://doi.org/10.1037/pas0001209
dc.identifier.eissn1939-134X
dc.identifier.issn1040-3590
dc.identifier.urihttp://hdl.handle.net/10201/221662
dc.languageeng
dc.publisherAmerican Psychological Association
dc.relationSin financiación externa a la Universidad
dc.relation.publisherversionhttps://psycnet.apa.org/doiLanding?doi=10.1037%2Fpas0001209
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectMalingering
dc.subjectFeigning
dc.subjectSymptom validity test
dc.subjectSVT
dc.subjectMeta analysis
dc.subject.odsObjetivo 16: Paz y justicia
dc.subject.odsObjetivo 3: Salud
dc.titleThe Inventory of Problems–29 (IOP-29): a systematic review and bivariate diagnostic test accuracy meta-analysis.
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dspace.entity.typePublicationes
relation.isAuthorOfPublication32c38dc6-fa13-4497-9e49-aec5a6c1c211
relation.isAuthorOfPublication6d5e0bf5-ef34-4006-afba-2462c3cb77f4
relation.isAuthorOfPublication.latestForDiscovery32c38dc6-fa13-4497-9e49-aec5a6c1c211
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
2023 - The Inventory of Problems-29 (IOP-29) a Systematic Review and Bivariate Diagnostic Test Accuracy Meta-Analysis. Psychological Assessment.pdf
Size:
2.34 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.37 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Artículos