Development and initial validation of the toxic personality scale: exploring reliability, structure, and convergent validity
Background: Toxic personality traits, which encompass behaviours and attitudes that negatively impact interpersonal relationships and personal well-being, have gained increasing attention in psychological research. However, a significant gap remains in developing reliable and culturally relevant mea...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2026 |
| País: | España |
| Institución: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | inglés |
| OAI Identifier: | oai:dnet:ariasmontano::f0d5cc368ac3ed114525cb5907223a5e |
| Acceso en línea: | https://hdl.handle.net/10272/28175 |
| Access Level: | acceso abierto |
| Palabra clave: | Toxic personality scale Narcissism Validity Reliability Turkish young adults 61 Psicología |
| Sumario: | Background: Toxic personality traits, which encompass behaviours and attitudes that negatively impact interpersonal relationships and personal well-being, have gained increasing attention in psychological research. However, a significant gap remains in developing reliable and culturally relevant measures to assess these traits. Objective: This study addressed a research gap by developing a new measure for determining toxic personality traits, the Toxic Personality Scale (TPS), and evaluating its reliability and validity across two samples of young Turkish adults. Methods: To develop the scale, two studies were conducted. Study 1 included 389 undergraduate students (78.66% male, 21.34% female) aged 18 to 48 years (M = 21.45, SD = 4.16). Study 2 involved 158 participants (72.78% female, 27.22% male) aged 18 to 35 years (M = 21.28, SD = 2.62). Participants completed the TPS and the Short Dark Triad through an online survey. Results: The exploratory and confirmatory factor analyses suggested that the TPS scale was unidimensional, with six items demonstrating a good internal consistency reliability estimate. The TPS also showed a significant positive relationship with the measure of narcissism. Conclusion: The findings suggest that the TPS is a valid and reliable tool for assessing toxic personality traits. These results support the TPS as a valuable instrument for use in both research and clinical settings to better understand and identify toxic personality traits in individuals. |
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