Psychometric characteristics and factorial structures of the Defensive Pessimism Questionnaire-Spanish Version (DPQ-SV).

The aim of this study was to validate the Spanish version of the Defensive Pessimism Questionnaire. A sample of undergraduate students (N = 539) was measured on defensive pessimism using the Defensive Pessimism Questionnaire (DPQ), optimism and pessimism using the Life Orientation Test (LOT), positive and negative affect using the Positive and Negative Affect Schedule, and anxiety using the trait subscale of the State and Trait Anxiety Inventory. A Spanish version of the DPQ (DPQ-SV) is presented. Exploratory and Robust Confirmatory Factor Analysis had a bi-dimensional structure (Reflectivity and Negative Expectation). Omega coefficient showed a high internal consistency and the temporal stability was high in each dimension. Both DPQ-SV subscales (Negative Expectation and Reflectivity) showed adequate convergence with LOT-optimism and LOT-pessimism. Reflectivity showed adequate criterion validity with trait-anxiety and negative affect, but inadequate criterion validity with positive affect. Negative Expectation showed excellent criterion validity with trait-anxiety and negative affect and good criterion validity with positive affect. Finally, mediation analysis showed that Negative Expectation had a significant indirect mediating effect between trait-anxiety and negative affect. Reflectivity had a significant indirect mediating effect between trait-anxiety and negative and positive affect. Analysis of the psychometric properties of the DPQ-SV subscale scores showed that it is a two factor adequate measurement tool for its use in this type of samples.

On the contribution of psychological flexibility to predict adjustment to breast cancer.

BACKGROUND: This study explored the contribution of Psychological Flexibility (PF) to predict adjustment to breast cancer. METHOD: Sixty-four females with breast cancer completed self-report measures of PF and adjustment (anxiety, depression, negative and positive affect) at baseline, and forty-two patients returned for assessment six months later. RESULTS: Higher flexibility at baseline significantly contributed to predict lower anxiety, depression and negative affect at follow-up. The effect sizes ranged from moderate to large. CONCLUSIONS: Results provide evidence for targeting PF to prevent enhanced psychological distress in patients with breast cancer, and add to a growing body of research supporting PF as a common protective factor across different contexts and populations.