A DSM-5 AMPD and ICD-11 compatible measure for an early identification of personality disorders in adolescence-LoPF-Q 12-18 latent structure and short form.
The LoPF-Q 12-18 (Levels of Personality Functioning Questionnaire) was designed for clinical use and to promote early detection of personality disorder (PD). It is a self-report measure with 97 items to assess personality functioning in adolescents from 12 years up. It operationalizes the dimensiona...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2022-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0269327 |
| _version_ | 1811208568791105536 |
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| author | Ronan Zimmermann Martin Steppan Johannes Zimmermann Lara Oeltjen Marc Birkhölzer Klaus Schmeck Kirstin Goth |
| author_facet | Ronan Zimmermann Martin Steppan Johannes Zimmermann Lara Oeltjen Marc Birkhölzer Klaus Schmeck Kirstin Goth |
| author_sort | Ronan Zimmermann |
| collection | DOAJ |
| description | The LoPF-Q 12-18 (Levels of Personality Functioning Questionnaire) was designed for clinical use and to promote early detection of personality disorder (PD). It is a self-report measure with 97 items to assess personality functioning in adolescents from 12 years up. It operationalizes the dimensional concept of personality disorder (PD) severity used in the Alternative DSM-5 Model for Personality Disorders and the ICD-11. In this study, we investigated the factorial structure of the LoPF-Q 12-18. Additionally, a short version was developed to meet the need of efficient screening for PD in clinical and research applications. To investigate the factorial structure, several confirmatory factor analysis models were compared. A bifactor model with a strong general factor and four specific factors showed the best nominal fit (CFI = .91, RMSEA = .04, SRMR = .07). The short version was derived using the ant colony optimization algorithm. This procedure resulted in a 20-item version with excellent fit for a hierarchical model with four first order factors to represent the domains and a secondary higher order factor to represent personality functioning (CFI = .98, RMSEA = .05, SRMR = .04). Clinical validity (effect size d = 3.1 between PD patients and controls) and clinical utility (cutoff ≥ 36 providing 87.5% specificity and 80.2% sensitivity) for detecting patients with PD were high for the short version. Both, the long and short LoPF-Q 12-18 version are ready to be used for research and diagnostic purposes. |
| first_indexed | 2024-04-12T04:23:34Z |
| format | Article |
| id | doaj.art-a292002f2f294348839cbd2b295ffd80 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-12T04:23:34Z |
| publishDate | 2022-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-a292002f2f294348839cbd2b295ffd802022-12-22T03:48:09ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01179e026932710.1371/journal.pone.0269327A DSM-5 AMPD and ICD-11 compatible measure for an early identification of personality disorders in adolescence-LoPF-Q 12-18 latent structure and short form.Ronan ZimmermannMartin SteppanJohannes ZimmermannLara OeltjenMarc BirkhölzerKlaus SchmeckKirstin GothThe LoPF-Q 12-18 (Levels of Personality Functioning Questionnaire) was designed for clinical use and to promote early detection of personality disorder (PD). It is a self-report measure with 97 items to assess personality functioning in adolescents from 12 years up. It operationalizes the dimensional concept of personality disorder (PD) severity used in the Alternative DSM-5 Model for Personality Disorders and the ICD-11. In this study, we investigated the factorial structure of the LoPF-Q 12-18. Additionally, a short version was developed to meet the need of efficient screening for PD in clinical and research applications. To investigate the factorial structure, several confirmatory factor analysis models were compared. A bifactor model with a strong general factor and four specific factors showed the best nominal fit (CFI = .91, RMSEA = .04, SRMR = .07). The short version was derived using the ant colony optimization algorithm. This procedure resulted in a 20-item version with excellent fit for a hierarchical model with four first order factors to represent the domains and a secondary higher order factor to represent personality functioning (CFI = .98, RMSEA = .05, SRMR = .04). Clinical validity (effect size d = 3.1 between PD patients and controls) and clinical utility (cutoff ≥ 36 providing 87.5% specificity and 80.2% sensitivity) for detecting patients with PD were high for the short version. Both, the long and short LoPF-Q 12-18 version are ready to be used for research and diagnostic purposes.https://doi.org/10.1371/journal.pone.0269327 |
| spellingShingle | Ronan Zimmermann Martin Steppan Johannes Zimmermann Lara Oeltjen Marc Birkhölzer Klaus Schmeck Kirstin Goth A DSM-5 AMPD and ICD-11 compatible measure for an early identification of personality disorders in adolescence-LoPF-Q 12-18 latent structure and short form. PLoS ONE |
| title | A DSM-5 AMPD and ICD-11 compatible measure for an early identification of personality disorders in adolescence-LoPF-Q 12-18 latent structure and short form. |
| title_full | A DSM-5 AMPD and ICD-11 compatible measure for an early identification of personality disorders in adolescence-LoPF-Q 12-18 latent structure and short form. |
| title_fullStr | A DSM-5 AMPD and ICD-11 compatible measure for an early identification of personality disorders in adolescence-LoPF-Q 12-18 latent structure and short form. |
| title_full_unstemmed | A DSM-5 AMPD and ICD-11 compatible measure for an early identification of personality disorders in adolescence-LoPF-Q 12-18 latent structure and short form. |
| title_short | A DSM-5 AMPD and ICD-11 compatible measure for an early identification of personality disorders in adolescence-LoPF-Q 12-18 latent structure and short form. |
| title_sort | dsm 5 ampd and icd 11 compatible measure for an early identification of personality disorders in adolescence lopf q 12 18 latent structure and short form |
| url | https://doi.org/10.1371/journal.pone.0269327 |
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