Cited by 6Mindfulness and Compassion InterventionsPsychometric Methodologies and TestingAnxiety, Depression, Psychometrics, Treatment, Cognitive Processes

Freiburg mindfulness inventory (FMI) short form and revised form (FMI-13R) — norm scores and psychometrics in a representative German sample

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Walach, Harald, Sauer, Sebastian, Kohls, Niko, Rose, Nina, Schmidt, Stefan·2025·BMC Psychology

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Abstract

Background: The Freiburg Mindfulness Inventory (FMI) in its short form is one of the most frequently used instruments in research to measure self-attributed mindfulness levels. Despite the widespread use, there is no calibration sample available until now. Thus, we decided to calibrate it in a representative German sample as norm values are of relevance for clinicians and researchers alike. In addition, we tried to replicate the instruments’ psychometric properties. Methods: A sample of 1,012 respondents was recruited from a commercial online panel, approximating a representative sample of the German population. Participants filled in the FMI-14 (short from). We performed psychometric analyses and calculated a Confirmatory Factor Analysis (CFA). We also computed a measurement invariance analysis and a LASSO regression to identify population variables that predict FMI scores. To gauge external validity of the instrument, we also presented the FMI together with four items of the Patient Health Questionnaire (PHQ-4). Results: We obtained the best psychometric properties with a revised version of the FMI-13R, where the only negatively coded item was removed due to lack of fit. McDonald’s Omega was found to be 0.88 and the mean item-scale intercorrelation was 0.36. The construct is unidimensional, with two highly correlated subconstructs, Presence and Acceptance ( r = 0.93), which can be separated for conceptual reasons if desired. The CFA supported these models. Age and gender stratified norm scores were calculated and reported. Regression analyses and partial correlation analyses showed negative correlation of FMI-13R scores with measures of anxiety and depression, as expected, and thereby support our previous findings that the instrument is valid and that the Acceptance component of mindfulness is the one that is associated with positive effects on health-related parameters. Conclusion: The FMI-13R is a psychometrically sound and valid instrument for the assessment of mindfulness. Norm scores can now be used by clinicians and researchers to classify individuals or samples into a range of values compared to the German population.

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Authors
Walach, H., Sauer, S., Kohls, N., Rose, N., & Schmidt, S.
Affiliations
  • Kazimieras Simonavičius University (LT)
  • Ansbach University of Applied Sciences (DE)
  • Coburg University of Applied Sciences (DE)
  • University of Freiburg (DE)
Corresponding author
Schmidt, Stefan
Venue
BMC Psychology
Published
2025-11-26
Volume
13
Issue
1
Pages
1328-1328
ISSN
2050-7283 (ISSN-L)
OpenAlex
W4416681891
Cited by
6
References
99
Citations by year
2026: 2 · 2025: 3 · 2024: 1
FWCI
5.91
Type
journal article
Language
en
Open access
Locations
  • BMC Psychology (publishedVersion, cc-by)
  • Research Square (acceptedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • FreiDok plus (Universitätsbibliothek Freiburg) (submittedVersion)
Funders
Universitätsklinikum Freiburg
Topics
  • Social Sciences › Psychology › Clinical Psychology › Mindfulness and Compassion Interventions
  • Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
Keywords
Freiburg Mindfulness Inventory, mindfulness assessment, normative scores, psychometric properties, measurement invariance, anxiety, depression, German population, questionnaire calibration
MeSH terms
Adolescent, Adult, Aged, Factor Analysis, Statistical, Female, Germany, Humans, Male, Middle Aged, Psychometrics, Surveys and Questionnaires, Reproducibility of Results, Young Adult, Mindfulness

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