The validity of Philadelphia Mindfulness Scale Thai version
Objective To test the psychological features of the Philadelphia Mindfulness Scale Thai version (PHLMS_TH).
Materials and methods PHLMS is a tool designed for assessing mindfulness. It consists of two subscales, awareness and acceptance, with Likert’s type rating 1-5 (1=never, 5=very often). The
test-retest reliability was tested in 30 subjects by Pearson’s correlation. The internal consistency and factor structure were determined from another group of 103 subjects. Factor analysis with promax rotation was applied.
Results Both subscales of the PHLMS_TH had high test-retest reliability and high internal consistency. Most items had high factor loadings to their corresponding domains. Only two items of the awareness subscale had low factor loadings to both domains.
Conclusion The psychometric properties of the PHMLS_TH was comparable to the original English version. Further studies in variety of subjects should be done to confi rm and extend these initial fi ndings.