Investigating the Validity and Reliability of the Persian Version of the Philadelphia Mindfulness Scale (PHLMS) among Clients of Counseling and Psychotherapy Centers

Abstract

The aim of this study was to investigate the validity and reliability of the Persian version of the Philadelphia Mindfulness Scale (PHLMS). The research method was descriptive and basic by objective. The study population was all clients of Tehran Counseling and Psychotherapy Center in 2020, of which 648, including 500 women and 148 men, were selected as the sample according to the available sampling method. The instruments used in this study were Philadelphia Mindfulness Scale (PHLMS), Brown and Ryan Mindfulness Scale (MAAS) and the second version of Acceptance and Action Questionnaire (AAQ-ll). The analysis of this study was performed by confirmatory factor analysis, Cronbach’s alpha, and correlation coefficient using AMOS 24 and SPSS 24 software. According to the results of the confirmatory factor analysis, the final version included the awareness subscale (9 questions) and the acceptance subscale (7 questions). The fit indices of the final model were at the desired level. Concurrent validity of this instrument was confirmed with the Brown and Ryan Mindfulness Scale and the Acceptance and Action Questionnaire. Cronbach's alpha was 0/85 and 0/81 for the Mindfulness and Acceptance subscales and 0/55 for the entire scale, respectively. The Iranian Philadelphia Mindfulness Scale (PHLMS) had good validity and reliability and can be used by therapists and researchers.

Keywords

• validity
• reliability
• mindfulness
• philadelphia