In NO particular order of preference:
1. Five Facet Mindfulness Questionnaire (FFMQ) [Link] – The FFMQ, revised from the Kentucky Inventory of Mindfulness Skills, is used to assess the construct of mindfulness. Previous research on assessment of mindfulness by self-report suggests that it may include five component skills: observing, describing, acting with awareness, nonjudging of inner experience, and nonreactivity to inner experience. These elements of mindfulness can be measured with the FFMQ.
Baer, R. A., Smith, G. T., Hopkins, J., et al. (2006). Using self-report assessment methods to explore facets of mindfulness. Assessment, 13(1), 27-45. [link]
Baer, R. A., Smith, G. T., Lykins, E., et al. (2008). Construct validity of the five facet mindfulness questionnaire in meditating and nonmeditating samples. Assessment, 15(3), 329-42. [link]
Van Dam, N. T., Earleywine, M., & Danoff-Burg, S. (2009). Differential item function across meditators and non-meditators on the five facet mindfulness questionnaire. Personality and Individual Differences, 47(5), 516-521. [link]
2. Mindful Attention and Awareness Scale (MAAS) – A 15-item, reverse-scored, 7-point scale (1 = almost always; 6 = almost never) self-report instrument with a single factor measuring attention to and awareness across several domains of experience in daily life (e.g., cognitive, emotional, physical, and general), such as “I find it difficult to stay focused on what’s happening in the present” and “I rush through activities without being really attentive to them.” Respondents rate how often they have experiences of acting on automatic pilot, being preoccupied and not paying attention in the present moment. The MAAS has a uni-dimensional factor structure that eliminated attitudinal components (i.e., acceptance) given the author’s findings of such components offering no explanatory advantage (Brown and Ryan, 2003). The MAAS appears to have appropriate application in research examining the role of mindfulness in the psychological well-being of college, working adults, and cancer patients, with or without comparisons to nonclinical controls.
Brown, K. W., & Ryan, R. M. (2003). The benefits of being present: Mindfulness and its role in psychological well-being. Journal of Personality and Social Psychology, 84(4), 822-48. [link]
Carlson, L. E., & Brown, K. W. (2005). Validation of the mindful attention awareness scale in a cancer population. J Psychosom Res, 58(1), 29. [link]
MacKillop, J., & Anderson, E. J. (2007). Further psychometric validation of the mindful attention awareness scale (MAAS). Journal of Psychopathology and Behavioral Assessment, 29(4), 289-293.[link]
Cordon, S. L., & Finney, S. J. (2008). Measurement invariance of the mindful attention awareness scale across adult attachment style. Measurement and Evaluation in Counseling and Development, 40(4), 18. [link]
Hansen, E., Lundh, L. G., Homman, A., et al. (2009). Measuring mindfulness: Pilot studies with the swedish versions of the mindful attention awareness scale and the Kentucky inventory of mindfulness skills. Cogn Behav Ther, 38(1), 2-15. [link]
Christopher, M. S., Charoensuk, S., Gilbert, B. D., Neary, T. J., & Pearce, K. L. (2009). Mindfulness in thailand and the united states: A case of apples versus oranges? Journal of Clinical Psychology, 65(6), 590-612. [link]
Van Dam, N. T., Earleywine, M., & Borders, A. (2010). Measuring mindfulness? An item response theory analysis of the mindful attention awareness scale. Personality and Individual Differences, 49, 805. [link]
3.Toronto Mindfulness Scale (TMS) – A 13-item, two-factor structure (Curiosity, Decentering), uniquely state-oriented for use immediately following a meditation experience, has been validated in a number of clinical contexts. The items of Factor 1 (Curiosity) reflect an attitude of wanting to learn more about one’s experiences. The items of Factor 2 (Decentering) reflect a shift from identifying personally with thoughts and feelings to relating to one’s experience in a wider field of awareness
Lau, M. A., Bishop, S. R., Segal, Z. V., et al. (2006). The toronto mindfulness scale: Development and validation. J Clin Psychol, 62(12), 1445. [link]
Davis, K. M., Lau, M. A., & Cairns, D. R. (2009). Development and preliminary validation of a trait version of the toronto mindfulness scale. Journal of Cognitive Psychotherapy, 23(3), 185-197. [link]
4. The Revised 12-item Cognitive and Affective Mindfulness Scale (CAMS-R) - uni-dimensional, 12-item inventory that measures mindfulness during general daily occurrences on four components allegedly needed to reach a mindful state (i.e., attention, awareness, present-focus, and acceptance/nonjudgment).
Feldman, G., Hayes, A., Kumar, S., et al. (2007). Mindfulness and emotion regulation: The development and initial validation of the cognitive and affective mindfulness scale-revised (CAMS-R). Journal of Psychopathology and Behavioral Assessment, 29(3), 177-190.[link]
5. The Southampton Mindfulness Questionnaire (SMQ) – uni-dimensional, 16-item inventory assessing the degree to which individuals respond to distressing thoughts and images using four aspects of mindfulness (observation, non-aversion, nonjudgment, letting go). Stressing its usefulness in clinical settings, the scale demonstrated to be able to distinguish between meditators and non-meditators and people with psychosis.
6. The Philadelphia Mindfulness Scale (PHLMS) The PHLMS is a 20-item, bi-dimensional measure assessing distinct components of present-centered awareness and acceptance that is based on both clinical and non-clinical samples without any meditation experience. Cardaciotto, L., Herbert, J. D., Forman, E. M., et al. (2008). The assessment of present-moment awareness and acceptance:
The Philadelphia mindfulness scale. Assessment, 15(2), 204. [link]
Cardaciotto, L., Herbert, J. D., Forman, E. M., et al. (2008). The assessment of present-moment awareness and acceptance: The Philadelphia mindfulness scale. Assessment, 15(2), 204. [link]
7. The 30-item Freiburg Mindfulness Inventory (FMI) - The FMI was designed only for use with individuals who had prior exposure to meditation practices that cultivate mindfulness, to the extent that it was developed qualitatively out of the Buddhist concept of mindfulness. Its intention was to discriminate between novice and expert meditators (Walach et al., 2006).
Buchheld, N., Grossman, P., & Walach, H. (2001). Measuring mindfulness in insight meditation (vipassana) and meditation-based psychotherapy: The development of the freiburg mindfulness inventory (FMI). Journal for Meditation and Meditation Research, 1(1), 11-34. [link]
Walach, H., Buchheld, N., Buttenmüller, V., et al. (2006). Measuring mindfulness—the freiburg mindfulness inventory (FMI). Personality and Individual Differences, 40(8), 1543-1555. [link]
Kohls, N., Sauer, S., & Walach, H. (2009). Facets of mindfulness–results of an online study investigating the freiburg mindfulness inventory. Personality and Individual Differences, 46(2), 224-230. [link]
8. Kentucky Inventory of Mindfulness Skills (KIMS) – developed as a means of determining effectiveness of Linehan’s Dialectical Behavior Therapy, is a 39-item multi-dimensional scale of interrelated skills related to what one does while practicing mindfulness, and how one does it. The “what” skills include observing (noticing or attending to) current experience, describing (noting or labeling observed experiences) with words, and participating (focusing full attention on current activity); the “how” skills include being nonjudgmental (accepting, refraining from evaluation), being one-mindful (using undivided attention), and being effective (using skillful means) (Baer et al., 2009).
Hansen, E., Lundh, L. G., Homman, A., et al. (2009). Measuring mindfulness: Pilot studies with the swedish versions of the mindful attention awareness scale and the kentucky inventory of mindfulness skills. Cogn Behav Ther, 38(1), 2-15. [link]
Nicastro, R., Jermann, F., Bondolfi, G., et al. (2010). Assessment of mindfulness with the french version of the kentucky inventory of mindfulness skills in community and borderline personality disorder samples. Assessment, 1-9. [link]
9. Mindfulness-Based Relapse Prevention Adherence and Competence Scale (MBRP-AC)
10. Self-Other Four Immeasurables (SOFI)
Kraus, S., & Sears, S. (2009). Measuring the immeasurables: Development and initial validation of the self-other four immeasurables (SOFI) scale based on buddhist teachings on loving kindness, compassion, joy, and equanimity. Social Indicators Research, 92(1), 169-181. [link]
11. Self-Compassion Scale [Link]
Neff, K. D. (2003). The development and validation of a scale to measure self-compassion. Self and Identity, 2(3), 223-250. [link]
Neff, K. (2003). Self-Compassion: An alternative conceptualization of a healthy attitude toward oneself. Self and Identity, 2(2), 85-101. [link]
12. Solloway Mindfulness Survey – The SMS is offered free to teachers and their students. Teachers can download their students’ SMS measures in order to monitor growth in mindfulness. [Link]
13. Acceptance & Action Questionnaire II – AAQ-II – The AAQ-II was developed in order to establish an internally consistent measure of ACT’s model of mental health and behavioral effectiveness. Acceptance was the term used to positively describe this model underlying Acceptance & Commitment Therapy; thus, it is defined as the willingness to experience (i.e., not alter the form, frequency, or sensitivity of) unwanted private events, in the pursuit of one’s values and goals. [Link]
Hayes, S.C., et al., Acceptance and commitment therapy: model, processes and outcomes. Behav Res Ther, 2006. 44(1): p. 1-25. [Link]
See the following link for comprehensive review of current research in the area of mindfulness [Link]
Most of these are still under development. Not all of these scales do a very good job at clearly measuring what is historically referred to by Sati or Smrti.
What is Mindfulness you may ask? Read [Here]
Mindfulness originates from a deeply rooted system of contemplative practice. It is imperative that one consider these cultural and historical concepts in trying to define or operationalize Mindfulness.
Good Luck! I look forward to discussion if needed.