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Psychological flexibility has recently attracted the attention of researchers in the field of sleep disorders; therefore, in the study, psychological flexibility was evaluated as a predictor or factor related to the presence/severity of insomnia. We included 2218 individuals selected from the randomized-control trial for behavioural therapy for insomnia and cross-sectional studies, including 1797 individuals with insomnia and 421 controls without insomnia. All participants completed the DSM-5-based insomnia diagnosis interview, Insomnia Severity Index, Hospital Anxiety and Depression Scale, and Acceptance Action Questionnaire-II. Linear regression and multinomial logistic regression models were used. Sex, education, occupation, marital status, anxiety, depression and psychological inflexibility were possible predictors or factors associated with the severity of insomnia. Multivariate linear regression analysis demonstrated that sex (𝛽 = 0.88; t = 2.80; p = 0.005), depression (𝛽 = 0.41; t = 10.7; p < 0.001), anxiety (𝛽 = 0.58; t = 14.1; p < 0.001) and psychological inflexibility (𝛽 = 0.09; t = 5.07; p < 0.001) were predictors of insomnia. The results of the multinomial logistic regression demonstrate that, in comparison to the absence of insomnia, insomnia at all levels (mild, moderate and severe) was associated with sex, anxiety and depression. Psychological inflexibility was only associated with severe insomnia (odds ratio = 1.04). These findings are important from a public health perspective because behavioural strategies designed to treat insomnia with a focus on psychological flexibility are low-cost and may help improve sleep quality in adults with insomnia, which also influences mental health.

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INTRODUCTION: COVID-19 has trickle-down psychological effects on multiple strata of society, particularly university students. Apart from the worry of contracting or spreading COVID-19, Malaysian university students were also locked down on their campuses, suffering significant psychological distress. Hence, an online mindfulness intervention was proposed to alleviate psychological distress and improve psychological flexibility and mindfulness. METHODS: This was a quasi-experimental study with university students as participants. Intervention group participants were instructed to complete online questionnaires which covered basic demographics and instruments assessing depression, anxiety, stress, mindfulness, psychological flexibility, and fear of COVID-19 before and after the one-hour intervention. The control group also completed before and after questionnaires and were subsequently crossed over to the intervention group. Repeated measures ANOVA was conducted to assess time*group effects. RESULTS: 118 participants were involved in this study. There were significant differences in anxiety (F(1,116) = 34.361, p < 0.001, partial eta-squared = 0.229) and psychological flexibility between the two groups (F(1,116) = 11.010, p = 0.001, partial eta-squared = 0.087), while there were no differences in depression, stress, mindfulness, or fear of COVID-19. CONCLUSION: The results of this study corroborate the efficacy of online single-session mindfulness therapy as a viable short-term psychological intervention under financial and time constraints. Since university students are in the age group with the highest incidence of depressive and anxiety disorders, it is crucial to utilize resources to address as many students as possible to ensure maximum benefit.

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The Multidimensional Psychological Flexibility Inventory (MPFI) is a new 60-item self-report scale developed to assess the specific components of psychological flexibility and inflexibility proposed in the Hexaflex model of Acceptance and Commitment Therapy (ACT). The present study sought to examine the psychometric properties of the Persian version of the MPFI-60 in a community sample of 307 Iranian adults. The original study supported a 12-factor second-order structure consisting of 6 dimensions for psychological flexibility and 6 dimensions for psychological inflexibility. The Persian MPFI-60 demonstrated acceptable semantic and test content, internal structure, correlations with other variables, and internal consistency. It also evidenced in relation to anxiety, stress, depression, and self-compassion. Overall, the results indicate that the Persian MPFI-60 is a psychometrically sound measure in the Iranian context that enables researchers and clinicians to comprehensively assess the components of psychological flexibility and inflexibility within the Hexaflex model.

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BACKGROUND: The Valuing Questionnaire (VQ) is considered as one of the most psychometrically robust instruments to measure valued living according to the acceptance and commitment therapy model. It consists of 10 items that are responded to on a 7-point Likert-type scale and has two factors: Progression and Obstruction. The Spanish version of the VQ showed good psychometric properties in Colombian samples. However, there is no evidence of the psychometric properties of the VQ in Spaniard samples. This study aims to analyze the validity of the VQ in a large Spaniard sample and analyze the measurement invariance with a similar Colombian sample. METHOD: The VQ was administered to a Spaniard sample of 846 adult participants from general online population. Cronbach's alpha and McDonald's omega were computed to analyze the internal consistency of the VQ. The fit of the VQ's two-factor model was tested through a confirmatory factor analysis with a robust maximum likelihood (MLR) estimation method. Afterward, we analyzed the measurement invariance across countries and gender. Convergent construct validity was analyzed with a package of questionnaires that evaluated experiential avoidance (Acceptance and Action Questionnaire-II, AAQ-II), emotional symptoms (Depression Anxiety and Stress Scale-21, DASS-21), life satisfaction (Satisfaction with Life Scale, SWLS), and cognitive fusion (Cognitive Fusion Questionnaire, CFQ). RESULTS: The internal consistency across samples was adequate (alphas and omegas were .85 for VQ-Progress and .84 for VQ-Obstruction). The two-factor model obtained a good fit to the data (RMSEA = 0.073, 90% CI [0.063, 0.083], CFI = 0.98, NNFI = 0.97, and SRMR = 0.053). The VQ showed strict invariance across countries and gender and showed theoretically coherent correlations with emotional symptoms, life satisfaction, experiential avoidance, and cognitive fusion. In conclusion, the Spanish version of the VQ demonstrated good psychometric properties in a large Spaniard sample.

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BACKGROUND: A sizeable proportion of Brazilian Primary Care (PC) providers suffer from common mental disorders, such as anxiety and depression. In an effort to cope with job-related distress, PC workers are likely to implement maladaptive strategies such as experiential avoidance (EA). The Acceptance and Action Questionnaire (AAQ-II) is a widely used instrument that evaluates EA but has shown questionable internal consistency in specific populations. This study assesses the psychometric properties of the AAQ-II among Brazilian PC providers, evaluates its convergence and divergence with self-criticism and mindfulness skills, and explores its criterion validity on anxiety and depressive symptoms. METHODS: A cross-sectional design was conducted in Brazilian PC services, and the sample included 407 PC workers. The measures evaluated EA, self-criticism, mindfulness, depression, and anxiety. RESULTS: The one-factor model of the AAQ-II replicated the original version structure. The AAQ-II presented good internal consistency among Brazilian PC providers. A multiple regression model demonstrated higher relationships with self-criticism than mindfulness skills. The criterion validity of the AAQ-II on anxiety and depression was stronger in the context of more severe symptoms. CONCLUSIONS: The AAQ-II is an appropriate questionnaire to measure the lack of psychological flexibility among Brazilian PC workers in the sense of EA.

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OBJECTIVE: To examine the psychometric properties of the Spanish version of the Valuing Questionnaire (VQ) in Colombian clinical and nonclinical samples. METHOD: The VQ was administered to a total sample of 1820 participants, which included undergraduates (N = 762), general population (N = 724), and a clinical sample (N = 334). The questionnaire packages included measures of experiential avoidance, cognitive fusion, mindfulness, life satisfaction, and psychological difficulties. RESULTS: Across the different samples, internal consistency was good (global Cronbach's alpha of 0.83 for Progress and 0.82 for obstruction). Measurement invariance was found across samples and gender, and the two-factor model obtained a good fit to the data. The latent means of progress and obstruction of the clinical sample were lower and higher, respectively, than the latent means of the nonclinical samples. Correlations with other variables were in the expected direction. CONCLUSION: The Spanish version of the VQ showed good psychometric properties.

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Abstract Introduction COVID-19 has trickle-down psychological effects on multiple strata of society, particularly university students. Apart from the worry of contracting or spreading COVID-19, Malaysian university students were also locked down on their campuses, suffering significant psychological distress. Hence, an online mindfulness intervention was proposed to alleviate psychological distress and improve psychological flexibility and mindfulness. Methods This was a quasi-experimental study with university students as participants. Intervention group participants were instructed to complete online questionnaires which covered basic demographics and instruments assessing depression, anxiety, stress, mindfulness, psychological flexibility, and fear of COVID-19 before and after the one-hour intervention. The control group also completed before and after questionnaires and were subsequently crossed over to the intervention group. Repeated measures ANOVA was conducted to assess time*group effects. Results 118 participants were involved in this study. There were significant differences in anxiety (F(1,116) = 34.361, p < 0.001, partial eta-squared = 0.229) and psychological flexibility between the two groups (F(1,116) = 11.010, p = 0.001, partial eta-squared = 0.087), while there were no differences in depression, stress, mindfulness, or fear of COVID-19. Conclusion The results of this study corroborate the efficacy of online single-session mindfulness therapy as a viable short-term psychological intervention under financial and time constraints. Since university students are in the age group with the highest incidence of depressive and anxiety disorders, it is crucial to utilize resources to address as many students as possible to ensure maximum benefit.

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The Multidimensional Psychological Flexibility Inventory (MPFI) is a new 60-item self-report scale developed to assess the specific components of psychological flexibility and inflexibility proposed in the Hexaflex model of Acceptance and Commitment Therapy (ACT). The present study sought to examine the psychometric properties of the Persian version of the MPFI-60 in a community sample of 307 Iranian adults. The original study supported a 12-factor second-order structure consisting of 6 dimensions for psychological flexibility and 6 dimensions for psychological inflexibility. The Persian MPFI-60 demonstrated acceptable semantic and test content, internal structure, correlations with other variables, and internal consistency. It also evidenced in relation to anxiety, stress, depression, and self-compassion. Overall, the results indicate that the Persian MPFI-60 is a psychometrically sound measure in the Iranian context that enables researchers and clinicians to comprehensively assess the components of psychological flexibility and inflexibility within the Hexaflex model. (AU)

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OBJECTIVE: Breast cancer is the most common cancer in women worldwide. Many of these patients suffer from multiple psychological symptoms. The present study aimed to investigate the impact of acceptance and commitment therapy (ACT) on depression, pain acceptance, and psychological flexibility in married women with breast cancer. METHODS: The present study was a pre- and post-test clinical trial with intervention and control groups. The research population consisted of women with breast cancer referred to the Ayatollah Yasrebi and Shahid Beheshti Hospitals in Kashan in 2018. Through a purposive sampling method, 40 women were selected and randomly divided into two groups, namely, intervention (n = 20) and control (n = 20). The applied tools included the Depression, Anxiety and Stress Scale (DASS-21), Chronic Pain Acceptance Questionnaire 8 (CPAQ-8), and Acceptance and Action Questionnaire - II (AAQ-II). Data were analyzed by SPSS 16 using descriptive statistics and analysis of variance (ANOVA). RESULTS: The results showed that ACT treatment significantly reduced the mean scores of depression compared to the control group (F = 107.72, p < 0.001). The mean scores of pain acceptance (F = 9.58, p < 0.05) and psychological flexibility (F = 10.61, p < 0 .05) significantly increased in comparison with the control group. CONCLUSION: ACT can be considered as an effective therapeutic approach to reduce depression and increase pain acceptance and psychological flexibility in women with breast cancer. These changes appear to be due to improved acceptance of thoughts and feelings associated with cancer and increased psychological flexibility, which is the primary goal of ACT treatment. CLINICAL TRIAL REGISTRATION: Iranian Registry of Clinical Trials (IRCT), IRCT20190518043620N1.

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Abstract Objective: Breast cancer is the most common cancer in women worldwide. Many of these patients suffer from multiple psychological symptoms. The present study aimed to investigate the impact of acceptance and commitment therapy (ACT) on depression, pain acceptance, and psychological flexibility in married women with breast cancer. Methods: The present study was a pre- and post-test clinical trial with intervention and control groups. The research population consisted of women with breast cancer referred to the Ayatollah Yasrebi and Shahid Beheshti Hospitals in Kashan in 2018. Through a purposive sampling method, 40 women were selected and randomly divided into two groups, namely, intervention (n = 20) and control (n = 20). The applied tools included the Depression, Anxiety and Stress Scale (DASS-21), Chronic Pain Acceptance Questionnaire 8 (CPAQ-8), and Acceptance and Action Questionnaire - II (AAQ-II). Data were analyzed by SPSS 16 using descriptive statistics and analysis of variance (ANOVA). Results: The results showed that ACT treatment significantly reduced the mean scores of depression compared to the control group (F = 107.72, p < 0.001). The mean scores of pain acceptance (F = 9.58, p < 0.05) and psychological flexibility (F = 10.61, p < 0 .05) significantly increased in comparison with the control group. Conclusion: ACT can be considered as an effective therapeutic approach to reduce depression and increase pain acceptance and psychological flexibility in women with breast cancer. These changes appear to be due to improved acceptance of thoughts and feelings associated with cancer and increased psychological flexibility, which is the primary goal of ACT treatment. Clinical trial registration: Iranian Registry of Clinical Trials (IRCT), IRCT20190518043620N1.

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Resumen La actual contingencia sanitaria producto del COVID-19 esta impactado significativamente la vida de las personas en todo el mundo, teniendo repercusiones no solo a nivel físico sino también a nivel psicológico. Diversas organizaciones e investigadores a nivel nacional e internacional han llamado la atención sobre las consecuencias a nivel de salud mental que podrían evidenciarse en el corto, mediano y largo plazo. En este contexto, puede evidenciarse la presencia y cronificación de patrones de evitación experiencial a nivel general, en la medida que las personas invierten tiempo y energía en controlar, disminuir, o cambiar sus pensamientos, emociones y sensaciones desagradables frente a la pandemia, el coronavirus-2019 y/o todos los significados que surgen en cada persona. La evitación experiencial o rigidez psicológica puede prolongar el sufrimiento y tener un gran costo psicológico, por lo que la alternativa a este patrón comportamental podría encontrarse en la flexibilidad psicológica.

Abstract The current health contingency resulting from COVID-19 is having a significant impact on the lives of people around the world, having repercussions not only on a physical level but also on a psychological level. Various organizations and researchers at national and international level have drawn attention to the consequences at the mental health level that could be evident in the short, medium and long term. In this context, the presence and chronification of patterns of experiential avoidance can be evidenced at a general level, to the extent that people invest time and energy in controlling, reducing, or changing their unpleasant thoughts, emotions and sensations in the face of the pandemic, the coronavirus-2019 and/or all the meanings that arise in each person. Experiential avoidance or psychological rigidity can prolong suffering and have a great psychological cost, so the alternative to this behavioral pattern could be found in psychological fexibility.

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Abstract Objective Acceptance and commitment therapy has been used to treat anxiety disorders recently. The purpose of this study was to investigate the effectiveness of acceptance and commitment therapy for psychological symptoms in students with social anxiety disorder, including difficulty in emotion regulation, psychological flexibility based on experiential avoidance, self-compassion, and external shame. Methods This study was a semi-experimental clinical trial. Twenty four students with social anxiety disorder were randomly divided into two groups after initial evaluations: an experimental group (12 subjects) and a control group (12 subjects). The experimental group received 12 treatment sessions based on a protocol of acceptance and commitment therapy for anxiety disorders, and the control group was put on a waiting list. Self-Compassion (SCS), Difficulty in Emotion Regulation (DERS), External Shame (ESS), Social Anxiety (SPIN), and Acceptance and Action (AAQ-II) questionnaires were used to assess participants. Data were analyzed using SPSS. Results Acceptance and commitment therapy was shown to be effective at the post-test and follow up stages for reducing external shame, social anxiety, and difficulty in emotion regulation and its components, and for increasing psychological flexibility and self-compassion (p < 0.05). The largest effect size of treatment was for increase of psychological flexibility and the lowest efficacy was for the components "difficulty in impulse control" and "limited access to emotional strategies" at the post-test and follow-up stages, respectively. Conclusion Acceptance and commitment therapy may be an appropriate psychological intervention for reducing the symptoms of students with social anxiety disorder and helping them to improve psychological flexibility. Emotion and related problems can be identified as one of the main targets of this treatment. Clinical trial registration: Iranian Registry of Clinical Trials, IRCT20180421039369N1.

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Acceptance-based approaches have demonstrated promise for improving outcomes in behavioral treatments for obesity, but few studies have examined processes of change in these treatments. It is critical to identify mechanisms of action in treatment to further optimize this approach, refine theory, and inform future research. This study examined change in several domain-specific and general measures of psychological flexibility in a randomized controlled trial of an acceptance-based behavioral weight loss treatment. The relationships between change in these measures and weight loss outcomes were also examined. Adults (N = 283) were randomized to receive 12 months of acceptance-based (ABT) or non-acceptance-based (non-ABT) behavioral treatment and completed measures of general and weight control-specific psychological flexibility at months 0, 6, and 12. Participants in ABT demonstrated greater increases in psychological flexibility related to eating and physical activity experiences during treatment compared to participants in non-ABT, and changes in these processes were correlated with better weight loss. Parallel mediation analyses further revealed that psychological flexibility related to eating and physical activity experiences partially mediated the relationship between treatment condition and 12-month weight loss. Participants across conditions also experienced small increases in general psychological flexibility, but general psychological flexibility was not meaningfully related to weight loss outcomes. These findings indicate that domain-specific (versus general) psychological flexibility may be most impacted by ABT and most relevant to weight loss outcomes. Results also provide partial support for the theoretical model of ABT for weight management.

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The aim of this study was to identify the relations of job demands (work overload) and job resources (social support and autonomy) with subjective job well-being (job satisfaction, positive affects, negative affects), as well as the moderating role of personal resources (psychological flexibility at work) in such relationships. The sample consisted of 4,867 Brazilian workers, of both sexes, with ages ranging from 18 to 67 years. Structural equation modelling showed that the work overload was negatively associated with job satisfaction (ß = -.06; p < .001) and positively with negative affects (ß = .24; p < .001); autonomy was positively associated with satisfaction (ß = .08; p < .001) and negative affects (ß = .08; p < .001); social support was positively associated with satisfaction (ß = .17; p < .001) and positive affects (ß = .20; p < .001), and negatively with negative affects (ß = -.21; p < .001); psychological flexibility moderated the relationships of overload with satisfaction (ß = .04; p < .05) and negative affects (ß = .08; p < .001); autonomy with positive affects (ß = -.06; p < .001) and social support with negative affects (ß = .08; p < .001). These results are discussed from perspective of a job demands-resources theory, especially with respect to the relevance of personal resources for the promotion of occupational well-being.

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Abstract Recent research has found that psychological flexibility, the key construct of the Acceptance and Commitment Therapy (ACT) model of mental health and behavioral effectiveness, is related to, and longitudinally predicts, a wide range of work-related outcomes. Less research, however, has been dedicated to explore the role of psychological flexibility as a protecting factor for the development of burnout syndrome. The current study examined whether: (a) general psychological flexibility and work-related psychological flexibility accounted for additional variance in burnout symptoms relative to work factors and other work-related constructs such as work engagement, work satisfaction, and psychological empowerment; and (b) work-related psychological flexibility moderated the relationship between exhaustion and cynicism. A cross-sectional study was conducted with 209 Spanish workers from different companies who completed questionnaires assessing the constructs of interest. Hierarchical regression analyses showed that psychological flexibility and work-related psychological flexibility accounted for additional variance in burnout symptoms. The moderator analysis showed that the relationship between exhaustion and cynicism was higher among participants with low levels of work-related psychological flexibility as compared to participants with high levels. These results suggest that interventions aiming to increase psychological flexibility might prevent the development of burnout syndrome.

Resumen La investigación ha mostrado que la flexibilidad psicológica, el constructo central del modelo de salud mental y eficacia conductual de la terapia de aceptación y compromiso (ACT), está relacionada y predice longitudinalmente un amplio rango de variables relacionadas con el trabajo. Menor grado de investigación se ha dedicado a explorar el rol de la flexibilidad psicológica como factor protector del desarrollo del síndrome de burnout. El presente estudio analizó si: (a) la flexibilidad psicológica general y la flexibilidad psicológica relacionada con el trabajo explicaban varianza adicional de los síntomas de burnout comparado con factores laborales y constructos como compromiso laboral, satisfacción laboral y empoderamiento psicológico; y (b) la flexibilidad psicológica relacionada con el trabajo moderaba la relación entre agotamiento y cinismo. Se realizó un estudio transversal con 209 trabajadores españoles de diferentes empresas que completaron cuestionarios que miden los constructos de interés. El análisis de regresión jerárquica mostró que la flexibilidad psicológica general y la flexibilidad psicológica relacionada con el trabajo explicaron varianza adicional de los síntomas de burnout. El análisis de moderación mostró que la relación entre agotamiento y cinismo fue mayor entre los participantes con niveles bajos de flexibilidad psicológica relacionada con el trabajo comparado con los participantes con niveles altos. Los resultados sugieren que las intervenciones que tienen como objetivo incrementar la flexibilidad psicológica podrían prevenir el desarrollo del síndrome de burnout.

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Abstract The Cognitive Fusion Questionnaire (CFQ) is a recently published measure of cogni tive fusion - a key construct in the model of psychopathology of acceptance and commitment therapy (ACT). This study presents the psychometric properties and factor structure data of a Spanish translation of the CFQ in Colombia. Three samples with a total of 1,763 participants were analyzed. The Spanish CFQ showed psychometric properties very similar to the ones obtained in the original version. Internal consistency across the different samples was good (Cronbach's alpha between .89 and .93). The one-factor model found in the original scale showed a good fit to the data. Measurement invariance was also found across sample and gen-der. The mean score of the clinical sample on the CFQ was significantly higher than the scores of the nonclinical samples. CFQ scores were significantly related to experiential avoidance, emotional symptoms, mindfulness, and life satisfaction. The CFQ was sensitive to the effects of a 1-session ACT intervention. This Spanish version of the CFQ shows good psychometric properties in Colombia.

Resumen El Cuestionario de Fusión Cognitiva (CFQ) es una medida de fusión cognitiva recientemente publicada; un constructo clave en el modelo de psicopatología de la terapia de aceptación y compromiso. El presente estudio muestra las propiedades psicométricas y estructura factorial de una traducción al español del CFQ en Colombia. Se analizaron tres muestras con Fusión cognitiva; Flexibilidad psicológica un total de 1763 participantes. La versión en español del CFQ mostró resultados muy similares a los obtenidos en la versión original. La consistencia interna a través de las distintas muestras fue buena (alfa de Cronbach entre .89 y .93). El modelo unifactorial encontrado en la escala original mostró un buen ajuste a los datos. Se encontró invarianza de la medida a través de muestras y sexo. La puntuación media de la muestra clínica en el CFQ fue significativamente mayor que las puntuaciones de las muestras no clínicas. Las puntuaciones en el CFQ estuvieron significativamente correlacionadas con evitación experiencial, síntomas emocionales, mindfulness y satisfacción vital. El CFQ fue sensible a los efectos de una intervención de terapia de aceptación y compromiso de una sesión. Esta versión en español del CFQ mostró buenas propiedades psicométricas en Colombia.

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La energía y motivación de los profesionales de enfermería son fundamentales para su bienestar, para garantizar la calidad asistencial, así como la permanencia de los trabajadores dentro de las organizaciones con altos niveles de compromiso. El objetivo de este trabajo fue explorar el valor añadido que tenían dos recursos personales del propio trabajador: su flexibilidad psicológica y atención plena, sobre sus niveles de vigor y agotamiento emocional relacionados con el trabajo, así como sobre su vitalidad y fatiga, controlando previamente otras demandas y recursos laborales. En el estudio participaron un total de 171 profesionales de enfermería procedentes de España y 50 profesionales de Cuba (10.9% varones y 86.9% mujeres). Se realizaron análisis descriptivos, correlacionales, contraste de medias y análisis de regresión jerárquica. Los resultados revelaron que la flexibilidad psicológica explicaba una parte significativa de la varianza en las puntuaciones de vigor, vitalidad y fatiga, mientras que la atención plena explicaba de forma significativa una parte de la varianza del agotamiento emocional. Demandas laborales como la ambigüedad de rol y recursos laborales como la autonomía, también mostraron un efecto directo importante. Los resultados se discuten en términos de la importancia de incorporar estas variables en los planes de prevención y promoción de la salud dentro de las organizaciones sanitarias.

Nurses' energy and motivation are fundamental to explain their well-being, to guarantee the quality of care, as well as the permanence of the workers within organizations with high levels of job commitment. Thus, the main aim of this study was to explore the added value of two personal resources of the worker, their psychological flexibility and mindfulness, on their levels of vigor and emotional exhaustion at work, as well as on their levels of vitality and fatigue, previously controlling other job demands and job resources. The study involved a total of 171 nursing professionals from Spain and 50 professionals from Cuba (10.9% male and 86.9% female). Descriptive, correlational, mean contrasts and hierarchical regression analyses were performed. The results showed that psychological flexibility explained a significant portion of the variance in vigor, vitality, and fatigue scores, while mindfulness significantly explained a portion of the variance in emotional exhaustion. Job demands such as role ambiguity and job resources such as autonomy also showed a significant direct effect on the energy and motivation variables. The results are discussed in terms of the importance of considering these variables in health prevention and promotion plans within health organizations.

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O modelo de flexibilidade psicológica (FP) dispõe de evidências em diversos países, mas sua investigação no Brasil é limitada pela ausência de instrumentos adaptados. Esse estudo reúne evidências psicométricas de um instrumento de avaliação da FP, o Acceptance and Action Questionnaire-II, adaptado para o Brasil. Após tradução e adaptação, o instrumento foi respondido por 1.352 estudantes universitários, e parte da amostra também respondeu escalas de resiliência, saúde geral, depressão e ansiedade. Os resultados indicaram estrutura unidimensional e confiabilidade satisfatória. A FP dos homens foi superior à das mulheres e tendeu a aumentar de acordo com a idade. Também houve correlação positiva com resiliência e saúde geral, e negativa com depressão e ansiedade. As propriedades psicométricas foram satisfatórias, mas ainda devem ser avaliadas em amostras diversificadas. O instrumento parece adequado para uso tanto no estudo sobre mudança de comportamento quanto sobre mecanismos de mudança terapêutica.(AU)

Psychological flexibility (PF) model has extensive evidence in several countries but its research in Brazil is limited due to lack of suitable instruments. This study gathers psychometric evidence from an FP instrument, Acceptance and Action Questionnaire-II, adapted for Brazil. After translated and adapted, 1,352 college students filled it, and same subsamples also filled scales on resilience, general health, depression and anxiety. Results indicated unidimensional structure and satisfactory reliability. FP in males was superior to females and increased with aging. There was also a positive correlation with resiliency and overall health, and a negative one with depression and anxiety. Psychometric properties were satisfactory, but ought to be evaluated in diverse samples. The instrument seems suitable for use both in studying behavior change and mechanisms of therapeutic change.(AU)

El modelo de flexibilidad psicológica (FP) dispone de evidencias en diversos países, pero su investigación en Brasil es limitada por falta de instrumentos adaptados. Este estudio reúne evidencias psicométricas de un instrumento de evaluación de la FP, el Acceptance and Action Questionnaire-II, adaptado para Brasil. Tras la traducción y adaptación, respondieron al instrumento 1.352 estudiantes universitarios, y parte de la muestra también respondió a escalas de resiliencia, salud general, depresión y ansiedad. Los resultados indicaron estructura unidimensional y confiabilidad satisfactoria. El modelo de FP de los hombres fue superior al de las mujeres y tiende a aumentar con la edad. Hubo correlación positiva con la resiliencia y salud general, y negativa con la depresión y ansiedad. Las propiedades psicométricas fueron satisfactorias, pero aún deben ser evaluadas en muestras diversificadas. El instrumento parece adecuado tanto para el estudio sobre cambios de comportamiento, como para el estudio sobre mecanismos de cambios terapéuticos.(AU)

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O modelo de flexibilidade psicológica (FP) dispõe de evidências em diversos países, mas sua investigação no Brasil é limitada pela ausência de instrumentos adaptados. Esse estudo reúne evidências psicométricas de um instrumento de avaliação da FP, o Acceptance and Action Questionnaire-II, adaptado para o Brasil. Após tradução e adaptação, o instrumento foi respondido por 1.352 estudantes universitários, e parte da amostra também respondeu escalas de resiliência, saúde geral, depressão e ansiedade. Os resultados indicaram estrutura unidimensional e confiabilidade satisfatória. A FP dos homens foi superior à das mulheres e tendeu a aumentar de acordo com a idade. Também houve correlação positiva com resiliência e saúde geral, e negativa com depressão e ansiedade. As propriedades psicométricas foram satisfatórias, mas ainda devem ser avaliadas em amostras diversificadas. O instrumento parece adequado para uso tanto no estudo sobre mudança de comportamento quanto sobre mecanismos de mudança terapêutica...

Psychological flexibility (PF) model has extensive evidence in several countries but its research in Brazil is limited due to lack of suitable instruments. This study gathers psychometric evidence from an FP instrument, Acceptance and Action Questionnaire-II, adapted for Brazil. After translated and adapted, 1,352 college students filled it, and same subsamples also filled scales on resilience, general health, depression and anxiety. Results indicated unidimensional structure and satisfactory reliability. FP in males was superior to females and increased with aging. There was also a positive correlation with resiliency and overall health, and a negative one with depression and anxiety. Psychometric properties were satisfactory, but ought to be evaluated in diverse samples. The instrument seems suitable for use both in studying behavior change and mechanisms of therapeutic change...

El modelo de flexibilidad psicológica (FP) dispone de evidencias en diversos países, pero su investigación en Brasil es limitada por falta de instrumentos adaptados. Este estudio reúne evidencias psicométricas de un instrumento de evaluación de la FP, el Acceptance and Action Questionnaire-II, adaptado para Brasil. Tras la traducción y adaptación, respondieron al instrumento 1.352 estudiantes universitarios, y parte de la muestra también respondió a escalas de resiliencia, salud general, depresión y ansiedad. Los resultados indicaron estructura unidimensional y confiabilidad satisfactoria. El modelo de FP de los hombres fue superior al de las mujeres y tiende a aumentar con la edad. Hubo correlación positiva con la resiliencia y salud general, y negativa con la depresión y ansiedad. Las propiedades psicométricas fueron satisfactorias, pero aún deben ser evaluadas en muestras diversificadas. El instrumento parece adecuado tanto para el estudio sobre cambios de comportamiento, como para el estudio sobre mecanismos de cambios terapéuticos...

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