Portuguese validation of the Cognitive and Affective Mindfulness Scale-Revised and the Philadelphia Mindfulness Scale

Abstract

ObjectivesThe purpose of this study was the validation of two instruments: Cognitive and Affective Mindfulness Scale-Revised (CAMS-R) and the Philadelphia Mindfulness Scale (PHLMS) in a non-clinical Portuguese sample. MethodsParticipants were 168 undergraduates (123 women), aged 18–50 years old (M=22; SD=5.94). Participants answered the following instruments: Cognitive and Affective Mindfulness Scale-Revised (CAMS-R); Philadelphia Mindfulness Scale (PHLMS); Portuguese version of the Toronto Alexithymia Scale; and Separation/Individuation Process Inventory. ResultsThe factorial analysis for the CAMS-R yielded a 9-items one factor with adequate internal consistency (.76). For PHLMS, the results showed a clear two-factor structure with exactly the same structure as the original version, and with adequate internal consistencies: awareness (.77) and acceptance (.85). The quality of mindfulness (CAMS-R) was positively correlated with awareness and acceptance (PHLMS), and negatively with self-differentiation (more problematic) and alexithymia. ConclusionBoth instruments seem to present adequate psychometric properties to be used in the Portuguese population.