{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T20:59:05Z","timestamp":1792789145776,"version":"4.5.0"},"reference-count":28,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Fondo de Apoyo a la Investigaci\u00f3n of Universidad C\u00e9sar Vallejo","award":["P-2024-227-VI-UCV"],"award-info":[{"award-number":["P-2024-227-VI-UCV"]}],"id":[{"id":"https:\/\/ror.org\/0297axj39","id-type":"ROR","asserted-by":"crossref"}]},{"award":["P-2024-227-VI-UCV"],"award-info":[{"award-number":["P-2024-227-VI-UCV"]}],"id":[{"id":"https:\/\/ror.org\/0297axj39","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Behav. Sci.","Behavioral Sciences"],"abstract":"<jats:p>Evidence for the original adult Emotion Regulation Questionnaire (ERQ) in Peruvian university populations remains limited, particularly regarding score comparability across sex. This cross-sectional psychometric study evaluated the factor structure, internal consistency, and sex-related measurement invariance of the original 10-item ERQ and an exploratory nine-item configuration in 414 psychology undergraduates from a private university in Trujillo, Peru. The correlated two-factor ERQ-10 showed a mixed but viable fit (\u03c72(34) = 84.56, CFI = 0.933, RMSEA = 0.060, 90% CI [0.044, 0.076], SRMR = 0.057), with positive loadings ranging from 0.381 to 0.806. Post hoc exclusion of Item 1 produced a stronger approximate fit (\u03c72(26) = 46.03, CFI = 0.971, RMSEA = 0.043, 90% CI [0.021, 0.063], SRMR = 0.045), but reliability changed negligibly. For the nine-item configuration, full metric invariance was not supported; partial metric, partial scalar, and partial strict invariance were supported after freeing the Item 5 loading across sex. The ERQ-10 therefore remains viable for group-level research in this sample, whereas the alternative configuration should be regarded as a sample-derived hypothesis requiring independent replication, broader samples, and evidence based on external variables.<\/jats:p>","DOI":"10.3390\/bs16091711","type":"journal-article","created":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T14:12:09Z","timestamp":1789999929000},"page":"1711","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Psychometric Evaluation of the Emotion Regulation Questionnaire (ERQ) in Peruvian Psychology Undergraduates: Factor Structure, Reliability, and Measurement Invariance Across Sex"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1381-8261","authenticated-orcid":false,"given":"Natalia Mavila","family":"Guzm\u00e1n Rodr\u00edguez","sequence":"first","affiliation":[{"name":"Escuela de Psicolog\u00eda, Universidad C\u00e9sar Vallejo, Trujillo 13001, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacqueline Roxana","family":"Romero Reyna","sequence":"additional","affiliation":[{"name":"Direcci\u00f3n de Investigaci\u00f3n, Universidad Privada de Trujillo, Trujillo 13007, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1641-207X","authenticated-orcid":false,"given":"Paul Alan Arkin","family":"Alvarado-Garc\u00eda","sequence":"additional","affiliation":[{"name":"Escuela de Psicolog\u00eda, Universidad Aut\u00f3noma del Per\u00fa, Lima 15842, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patricia Ibeth","family":"Tirado Bocanegra","sequence":"additional","affiliation":[{"name":"Escuela de Psicolog\u00eda, Universidad C\u00e9sar Vallejo, Trujillo 13001, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5712-2186","authenticated-orcid":false,"given":"Carlos Miguel","family":"Perez Lara","sequence":"additional","affiliation":[{"name":"Escuela de Psicolog\u00eda, Universidad C\u00e9sar Vallejo, Trujillo 13001, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,9,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"217","DOI":"10.1016\/j.cpr.2009.11.004","article-title":"Emotion-regulation strategies across psychopathology: A meta-analytic review","volume":"30","author":"Aldao","year":"2010","journal-title":"Clinical Psychology Review"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"32054","DOI":"10.1007\/s12144-022-04220-6","article-title":"Investigating measurement invariance of the Emotion Regulation Questionnaire-8 (ERQ-8) across 29 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