This study validated the Portuguese 5-item Child and Adolescent Mindfulness Measure (CAMM-5-PT) in 2,345 adolescents aged 12–18, examining factor structure, reliability, test–retest stability, gender/grade invariance, and convergent, divergent, and incremental validity against depression, anxiety, stress, and well-being.
The CAMM-5-PT showed excellent unidimensional fit, strong internal consistency, and high test–retest reliability; it was measurement-invariant across gender and school grade. Boys scored higher in mindfulness than girls. The scale added incremental predictive validity for depression, anxiety, stress, and well-being beyond psychological flexibility, inflexibility, rumination, and self-compassion.
- Full text was not available; details on effect sizes, fit indices, and reliability coefficients could not be extracted. - Sample was drawn from a single country (Portugal), limiting generalizability. - No information provided on socioeconomic diversity or clinical versus community breakdown of the sample.
The CAMM-5-PT is a brief, psychometrically sound tool suitable for screening adolescent mindfulness in school and research settings in Portuguese-speaking populations. Clinicians should note that boys tend to report higher mindfulness than girls, which may affect interpretation of scores.
