Measuring Mindfulness: A Rasch Analysis of the Freiburg Mindfulness Inventory

The objective of the study was to assess the psychometric properties of the Freiburg Mindfulness Inventory (FMI-14) using a Rasch model approach in a cross-sectional design. The scale was administered to N = 130 British patients with different psychosomatic conditions. The scale failed to show clear...

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Bibliographic Details
Published inReligions (Basel, Switzerland ) Vol. 2; no. 4; pp. 693 - 706
Main Authors Sauer, Sebastian, Walach, Harald, Offenbächer, Martin, Lynch, Siobhan, Kohls, Niko
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.12.2011
Subjects
assessment
Classical test theory
Item response theory
measurement
Mindfulness
Quantitative psychology
Questionnaires
Rasch
Rasch model
Germany
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Summary:The objective of the study was to assess the psychometric properties of the Freiburg Mindfulness Inventory (FMI-14) using a Rasch model approach in a cross-sectional design. The scale was administered to N = 130 British patients with different psychosomatic conditions. The scale failed to show clear one-factoriality and item 13 did not fit the Rasch model. A two-factorial solution without item 13, however, appeared to fit well. The scale seemed to work equally well in different subgroups such as patients with or without mindfulness practice. However, some limitations of the validity of both the one-factorial and the two-factorial version of the scale were observed. Sizeable floor and ceiling effects limit the diagnostical use of the instrument. In summary, the study demonstrates that the two-factorial version of the FMI-13 shows acceptable approximation to Rasch requirements, but is in need of further improvement. The one-factorial solution did not fit well, and cannot be recommended for further use.
ISSN:2077-1444
2077-1444
DOI:10.3390/rel2040693