Exploring scale validity and measurement invariance of the Toronto Mindfulness Scale across levels of meditation experience and proficiency

Ireland, Michael J. and Day, Jamin J. and Clough, Bonnie A. (2018) Exploring scale validity and measurement invariance of the Toronto Mindfulness Scale across levels of meditation experience and proficiency. Journal of Clinical Psychology, 75 (3). pp. 445-461. ISSN 0021-9762

Abstract

Objectives: The Toronto Mindfulness Scale (TMS) is a widely used instrument of state mindfulness. Research suggests the interpretation and functioning of mindfulness scale items may differ as a function of meditation experience, and thus, establishing invariance across experience levels is essential.

Methods: Five hundred and five meditation practitioners (32.7% male, 33.3% female, and 34.1% unspecified) with an average age of 42.37 years (SD?=?12.70) completed the TMS online.

Results: Results support at least partial invariance across subgroups based on years of mindfulness meditation experience and self-reported proficiency. Construct validity of the Decentering subscale was also supported; however, the Curiosity subscale did not meet validity expectations, as it required additional model modifications to yield good fit, and means were not sensitive to differences in group experience or proficiency.

Conclusions: Our findings suggest further review of the TMS Curiosity items may be warranted to determine its suitability for use within mindfulness assessment.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version, in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Psychology and Counselling
Date Deposited: 13 Feb 2019 01:27
Last Modified: 14 Feb 2019 02:16
Uncontrolled Keywords: Toronto Mindfulness Scale; measurement invariance; meditation; mindfulness; multigroup confirmatory factor analysis
Fields of Research : 17 Psychology and Cognitive Sciences > 1701 Psychology > 170109 Personality, Abilities and Assessment
17 Psychology and Cognitive Sciences > 1701 Psychology > 170110 Psychological Methodology, Design and Analysis
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970117 Expanding Knowledge in Psychology and Cognitive Sciences
Identification Number or DOI: 10.1002/jclp.22709
URI: http://eprints.usq.edu.au/id/eprint/35138

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