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<p>Optimism, defined as the tendency to expect positive outcomes and view challenges as manageable, plays a vital role in the lives of individuals with chronic illnesses, including multiple sclerosis. Given its potential benefits, measuring optimism through validated tools like the Life Orientation Test-Revised (LOT-R) is essential for both research and clinical practice. This study aims to validate the Spanish version of the LOT-R within a sample of MS patients, assessing its psychometric properties and exploring its potential utility in clinical settings. This study included 179 patients with Relapsing–Remitting Multiple Sclerosis (PwMS). Confirmatory factor analysis (CFA) was performed to assess the factor structure of the LOT-R. Model fits were evaluated by the χ2/df value, comparative fit index (CFI), and root mean square error of approximation (RMSEA). The LOT-R showed good psychometric characteristics in our sample of PwMS. The CFA’s for both models (the two correlated factors model and the second-order factor model) yielded a good model fit. Cronbach’s alpha and McDonald’s omega were acceptable. Optimism was significantly correlated with quality-of-life scores, resilience, and fear of relapse scale. In general terms, the LOT-10 has satisfactory psychometric properties and is suitable for measuring dispositional optimism in Spanish-speaking patients with multiple sclerosis.</p>

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Exploring the Psychometric Properties of the Spanish Version of the Life Orientation Test-Revised Among Multiple Sclerosis Patients: Insights into Optimism

  • 期刊论文

  • 发表日期：

    2025年4月11日

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  • Yunier Broche-Pérez,
  • Rodneys M. Jiménez-Morales,
  • Diego D. Díaz-Guerra

摘要

Optimism, defined as the tendency to expect positive outcomes and view challenges as manageable, plays a vital role in the lives of individuals with chronic illnesses, including multiple sclerosis. Given its potential benefits, measuring optimism through validated tools like the Life Orientation Test-Revised (LOT-R) is essential for both research and clinical practice. This study aims to validate the Spanish version of the LOT-R within a sample of MS patients, assessing its psychometric properties and exploring its potential utility in clinical settings. This study included 179 patients with Relapsing–Remitting Multiple Sclerosis (PwMS). Confirmatory factor analysis (CFA) was performed to assess the factor structure of the LOT-R. Model fits were evaluated by the χ2/df value, comparative fit index (CFI), and root mean square error of approximation (RMSEA). The LOT-R showed good psychometric characteristics in our sample of PwMS. The CFA’s for both models (the two correlated factors model and the second-order factor model) yielded a good model fit. Cronbach’s alpha and McDonald’s omega were acceptable. Optimism was significantly correlated with quality-of-life scores, resilience, and fear of relapse scale. In general terms, the LOT-10 has satisfactory psychometric properties and is suitable for measuring dispositional optimism in Spanish-speaking patients with multiple sclerosis.