The Prejudice Towards People with Mental Illness Scale: Psychometric Properties of the Italian Version (PPMI-IT)

Currently, there are no validated instruments in Italian specifically designed to assess mental illness stigma or prejudice. Moreover, implicit measures, while insightful, are often resource-intensive and impractical for large-scale population studies of Italian speakers. The present study investiga...

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Main Authors: Francesca Bruno, Francesco Chirico, Hicham Khabbache, Younes Rami, Driss Ait Ali, Valentina Cardella, Maria Chayinska, Ivan Formica, Amelia Rizzo
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:European Journal of Investigation in Health, Psychology and Education
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Online Access:https://www.mdpi.com/2254-9625/15/7/126
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author Francesca Bruno
Francesco Chirico
Hicham Khabbache
Younes Rami
Driss Ait Ali
Valentina Cardella
Maria Chayinska
Ivan Formica
Amelia Rizzo
author_facet Francesca Bruno
Francesco Chirico
Hicham Khabbache
Younes Rami
Driss Ait Ali
Valentina Cardella
Maria Chayinska
Ivan Formica
Amelia Rizzo
author_sort Francesca Bruno
collection DOAJ
description Currently, there are no validated instruments in Italian specifically designed to assess mental illness stigma or prejudice. Moreover, implicit measures, while insightful, are often resource-intensive and impractical for large-scale population studies of Italian speakers. The present study investigated the validity of the Italian version of the Prejudice towards People with Mental Illness scale (PPMI-IT) in measuring biases toward individuals with mental health issues. The original instrument by Kenny et al. was translated from English into Italian and vice versa. A sample of 455 Italian-speaking participants (65% female; M<sub>age</sub> = 33.39; SD = 13.21) was utilized to conduct a confirmatory factor analysis, confirming a four-factor structure (<i>fear/avoidance, malevolence, authoritarianism, unpredictability</i>). Factor loadings indicated that each dimension was well represented, supporting the construct validity of the scale. Model fit indices, including chi-square (χ<sup>2</sup> = 782.54, df = 296.00, χ<sup>2</sup>/df = 2.64), RMSEA (0.06, 90% CI: 0.060–0.07), CFI (0.93), TLI (0.91), and SRMR (0.06), suggest an excellent model fit. Furthermore, the analysis of correlations and the heterotrait/monotrait (HTMT) ratio provides evidence supporting the discriminant validity of the PPMI scale compared with social desirability. These findings confirm that the PPMI scale is a valid and reliable tool for assessing biases toward individuals with mental health issues, making it suitable for academic research, clinical interventions, and public policy contexts.
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spelling doaj-art-94b9eb9aae6a4cd7920b83ee4c4b79762025-08-20T03:58:30ZengMDPI AGEuropean Journal of Investigation in Health, Psychology and Education2174-81442254-96252025-07-0115712610.3390/ejihpe15070126The Prejudice Towards People with Mental Illness Scale: Psychometric Properties of the Italian Version (PPMI-IT)Francesca Bruno0Francesco Chirico1Hicham Khabbache2Younes Rami3Driss Ait Ali4Valentina Cardella5Maria Chayinska6Ivan Formica7Amelia Rizzo8Department of Cognitive Sciences, Pedagogical Psychological and Cultural Studies, University of Messina, 98122 Messina, ItalyPost-Graduate School in Occupational Health, Catholic University of the Sacred Heart, 00168 Rome, ItalyFaculty of Literature and Human Sciences, Sidi Mohamed Ben Abdellah University, Fez 30000, MoroccoFaculty of Literature and Human Sciences, Sidi Mohamed Ben Abdellah University, Fez 30000, MoroccoFaculty of Literature and Human Sciences, Sidi Mohamed Ben Abdellah University, Fez 30000, MoroccoDepartment of Cognitive Sciences, Pedagogical Psychological and Cultural Studies, University of Messina, 98122 Messina, ItalyDepartment of Cognitive Sciences, Pedagogical Psychological and Cultural Studies, University of Messina, 98122 Messina, ItalyDepartment of Cognitive Sciences, Pedagogical Psychological and Cultural Studies, University of Messina, 98122 Messina, ItalyMedical-Legal Center of Messina, National Institute of Social Welfare, 98122 Messina, ItalyCurrently, there are no validated instruments in Italian specifically designed to assess mental illness stigma or prejudice. Moreover, implicit measures, while insightful, are often resource-intensive and impractical for large-scale population studies of Italian speakers. The present study investigated the validity of the Italian version of the Prejudice towards People with Mental Illness scale (PPMI-IT) in measuring biases toward individuals with mental health issues. The original instrument by Kenny et al. was translated from English into Italian and vice versa. A sample of 455 Italian-speaking participants (65% female; M<sub>age</sub> = 33.39; SD = 13.21) was utilized to conduct a confirmatory factor analysis, confirming a four-factor structure (<i>fear/avoidance, malevolence, authoritarianism, unpredictability</i>). Factor loadings indicated that each dimension was well represented, supporting the construct validity of the scale. Model fit indices, including chi-square (χ<sup>2</sup> = 782.54, df = 296.00, χ<sup>2</sup>/df = 2.64), RMSEA (0.06, 90% CI: 0.060–0.07), CFI (0.93), TLI (0.91), and SRMR (0.06), suggest an excellent model fit. Furthermore, the analysis of correlations and the heterotrait/monotrait (HTMT) ratio provides evidence supporting the discriminant validity of the PPMI scale compared with social desirability. These findings confirm that the PPMI scale is a valid and reliable tool for assessing biases toward individuals with mental health issues, making it suitable for academic research, clinical interventions, and public policy contexts.https://www.mdpi.com/2254-9625/15/7/126PPMIprejudicemental illnessmental health
spellingShingle Francesca Bruno
Francesco Chirico
Hicham Khabbache
Younes Rami
Driss Ait Ali
Valentina Cardella
Maria Chayinska
Ivan Formica
Amelia Rizzo
The Prejudice Towards People with Mental Illness Scale: Psychometric Properties of the Italian Version (PPMI-IT)
European Journal of Investigation in Health, Psychology and Education
PPMI
prejudice
mental illness
mental health
title The Prejudice Towards People with Mental Illness Scale: Psychometric Properties of the Italian Version (PPMI-IT)
title_full The Prejudice Towards People with Mental Illness Scale: Psychometric Properties of the Italian Version (PPMI-IT)
title_fullStr The Prejudice Towards People with Mental Illness Scale: Psychometric Properties of the Italian Version (PPMI-IT)
title_full_unstemmed The Prejudice Towards People with Mental Illness Scale: Psychometric Properties of the Italian Version (PPMI-IT)
title_short The Prejudice Towards People with Mental Illness Scale: Psychometric Properties of the Italian Version (PPMI-IT)
title_sort prejudice towards people with mental illness scale psychometric properties of the italian version ppmi it
topic PPMI
prejudice
mental illness
mental health
url https://www.mdpi.com/2254-9625/15/7/126
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