Philadelphia Mindfulness Scale (PHLMS)

The Philadelphia Mindfulness Scale (PHLMS) is a 20-item self-report instrument measuring trait mindfulness across two core dimensions: Present-Moment Awareness and Acceptance. Developed by Cardaciotto, Herbert, and colleagues at Drexel University and published in Assessment in 2008, the PHLMS emphasizes the integration of attentional and acceptance-based processes central to contemporary mindfulness theory and practice. The two-factor structure reflects the distinction between the ability to focus attention on present experience and the capacity to receive that experience without judgment or resistance—processes that jointly characterize psychological flexibility and adaptive mindfulness.