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One of these instruments is the Perseverative Thinking Questionnaire (PTQ) and its version for children (PTQ-C). This study presents the Spanish translation of the PTQ-C and its psychometric analysis in a sample of 1,127 Colombian children and adolescents (8-18 years old). All items obtained good discrimination indexes, and internal consistency was excellent (.93). A cross-validation study was conducted to analyze the factor structure of the PTQ-C, which strongly supported the one-factor structure. Measurement invariances across gender and age-group (8-12 and 13-18 years old) were also found. The PTQ-C scores for older boys were lower than for younger boys, whereas the inverse pattern was found for girls. The PTQ-C showed strong correlations with measures of pathological worry, emotional symptoms, and psychological inflexibility. In conclusion, the Spanish translation of the PTQ-C appears to be a valid and reliable measure of RNT.<\/jats:p>","DOI":"10.1177\/1073191119843580","type":"journal-article","created":{"date-parts":[[2019,4,17]],"date-time":"2019-04-17T02:14:39Z","timestamp":1555467279000},"page":"1657-1667","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":9,"title":["Psychometric Properties and Measurement Invariance Across Gender and Age-Group of the Perseverative Thinking Questionnaire\u2013Children (PTQ-C) in Colombia"],"prefix":"10.1177","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8863-1111","authenticated-orcid":false,"given":"Francisco J.","family":"Ruiz","sequence":"first","affiliation":[{"name":"Fundaci\u00f3n Universitaria Konrad Lorenz, Bogota, Colombia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniela M.","family":"Salazar","sequence":"additional","affiliation":[{"name":"Fundaci\u00f3n Universitaria Konrad Lorenz, Bogota, Colombia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan C.","family":"Su\u00e1rez-Falc\u00f3n","sequence":"additional","affiliation":[{"name":"Universidad Nacional de Educaci\u00f3n a Distancia, Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andr\u00e9s","family":"Pe\u00f1a-Vargas","sequence":"additional","affiliation":[{"name":"Fundaci\u00f3n Universitaria Konrad Lorenz, Bogota, Colombia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Ehring","sequence":"additional","affiliation":[{"name":"Ludwig-Maximilians-Universit\u00e4t M\u00fcnchen, Munich, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5495-0613","authenticated-orcid":false,"given":"Mar\u00eda L.","family":"Barreto-Zambrano","sequence":"additional","affiliation":[{"name":"Polit\u00e9cnico Grancolombiano Instituci\u00f3n Universitaria, Bogota, Colombia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mar\u00eda P.","family":"G\u00f3mez-Barreto","sequence":"additional","affiliation":[{"name":"Polit\u00e9cnico Grancolombiano Instituci\u00f3n Universitaria, Bogota, Colombia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2019,4,16]]},"reference":[{"key":"bibr1-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1007\/s10802-007-9143-2"},{"key":"bibr2-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1023\/A:1019873015594"},{"key":"bibr3-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1521\/jscp.23.5.653.50752"},{"key":"bibr4-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1007\/s10862-017-9624-8"},{"key":"bibr5-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1007\/s10862-014-9446-x"},{"key":"bibr6-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1016\/0005-7967(83)90121-3"},{"key":"bibr7-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1080\/15374410709336568"},{"key":"bibr8-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1080\/10705510701301834"},{"key":"bibr9-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1207\/S15328007SEM0902_5"},{"key":"bibr10-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1037\/pas0000322"},{"key":"bibr11-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1016\/S0005-7967(96)00116-7"},{"key":"bibr12-1073191119843580","volume-title":"Statistical power analysis for the behavioral sciences","author":"Cohen J.","year":"1988","edition":"2"},{"key":"bibr13-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1023\/A:1016014818163"},{"key":"bibr14-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcbs.2019.02.005"},{"key":"bibr15-1073191119843580","doi-asserted-by":"publisher","DOI":"10.3389\/fpsyg.2017.02159"},{"key":"bibr16-1073191119843580","volume-title":"Generalized anxiety disorder and worrying: A comprehensive handbook for clinicians and researchers","author":"Ehring T."},{"key":"bibr17-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1027\/1015-5759\/a000097"},{"key":"bibr18-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1521\/ijct.2008.1.3.192"},{"key":"bibr19-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1016\/j.jbtep.2010.12.003"},{"key":"bibr20-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1177\/0013164417719308"},{"key":"bibr21-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1037\/1040-3590.20.2.93"},{"key":"bibr22-1073191119843580","doi-asserted-by":"publisher","DOI":"10.1027\/1015-5759\/a000487"},{"key":"bibr23-1073191119843580","volume-title":"Caring for your teenager. 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