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Study two used a larger, independent sample to examine confirmatory factor analyses and external validity. POPS-C demonstrated good psychometric properties, with a bifactor model as best fit. The validation of a measure of OCP traits in children aged 4-9 years demonstrates that OCP traits are evident and measurable in childhood. Strong associations between POPS-C scores and negative affectivity, executive functioning deficits, elevated delay of gratification, poor emotion regulation, and psychiatric symptoms highlight the need for early assessment and intervention for youth with OCP traits.<\/jats:p>","DOI":"10.1521\/pedi.2026.40.4.281","type":"journal-article","created":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T18:23:17Z","timestamp":1785781397000},"page":"281-308","source":"Crossref","is-referenced-by-count":1,"title":["Development and Initial Validation of the Pathological Obsessive-Compulsive Personality Scale for Children (POPS-C)"],"prefix":"10.1521","volume":"40","author":[{"given":"Ashley F.","family":"Jennings","sequence":"first","affiliation":[{"name":"From Children's Minnesota, Center for Treatment of Eating Disorders, St. Paul, Minnesota"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Molly F.","family":"Steinhoff","sequence":"additional","affiliation":[{"name":"Department of Psychological & Brain Sciences, Washington University in St. Louis, St. Louis, Missouri"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rebecca","family":"Tillman","sequence":"additional","affiliation":[{"name":"Department of Psychiatry, Washington University in St. Louis, St. Louis, Missouri"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joshua J.","family":"Jackson","sequence":"additional","affiliation":[{"name":"Department of Psychological & Brain Sciences, Washington University in St. Louis, St. Louis, Missouri"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anthony","family":"Pinto","sequence":"additional","affiliation":[{"name":"Northwell, New Hyde Park, New York, and the Department of Psychiatry, Donald and Barbara Zucker School of Medicine at Hofstra\/Northwell, Hempstead, New York"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kirsten E.","family":"Gilbert","sequence":"additional","affiliation":[{"name":"Department of Psychiatry, Washington University in St. Louis, St. Louis, Missouri"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"377","reference":[{"key":"ref1","unstructured":"Achenbach, T. 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