Kentucky Inventory of Mindfulness Skills (KIMS)
Also known as: KIMS, KIMS-39
The Kentucky Inventory of Mindfulness Skills (KIMS) is a 39-item self-report questionnaire measuring trait mindfulness across four theoretically distinct skills: Observing, Describing, Acting with Awareness, and Accepting Without Judgment. Developed by Baer, Smith, and Allen in 2004 at the University of Kentucky, the KIMS was one of the first multidimensional mindfulness measures and served as a foundational model for subsequent instruments including the widely used Five Facet Mindfulness Questionnaire (FFMQ). The KIMS remains a valuable tool for research and clinical assessment, particularly in settings emphasizing skill-based approaches to mindfulness development.
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When to use it
The KIMS is appropriate for assessing trait mindfulness in adults across diverse contexts: mindfulness-based interventions (MBSR, MBCT), DBT and skills-based therapy (where the four-skill model aligns with treatment targets), ACT research, clinical psychology populations (anxiety, depression, trauma), and meditation studies. The four-skill structure makes the KIMS particularly useful when clinicians need to identify specific mindfulness deficits—for instance, a client may have low Describing skills (emotional vocabulary limitations) while maintaining adequate Observing. The KIMS is less suitable for state measurement or acute mindfulness assessment; trait instruments are appropriate for longer-term outcome tracking.
Strengths & limitations
- Foundational multidimensional model: one of the earliest and most influential multidimensional mindfulness measures, creating a framework that influenced subsequent instrument development.
- Clinically meaningful subscales: the four skills directly map onto therapeutic targets in DBT, ACT, and mindfulness-based cognitive therapy, making the KIMS particularly useful for case formulation.
- Skill-based conceptualization: frames mindfulness as learnable, developable skills rather than fixed traits, supporting psychotherapy oriented toward skill-building and practice.
- Comprehensive scope: 39 items provide sufficient depth across four dimensions without excessive length, balancing comprehensiveness and efficiency.
- Less contemporary validation: while pioneering, the KIMS has undergone less extensive modern validation and replication than the FFMQ, which was derived partly from KIMS items.
- Observing subscale ambiguity: similar to the FFMQ, the Observing subscale in non-meditating or rumination-prone populations may reflect mind-wandering rather than adaptive awareness.
- Reverse-scoring complexity: multiple reverse-scored items increase scoring burden and error risk compared to unidimensional measures.
- Limited psychometric reporting: normative data and clinical cutoffs are less extensively published compared to FFMQ, requiring researchers to develop local norms.
Frequently asked
How is the KIMS different from the FFMQ?
Both derive from the same conceptual framework, but the FFMQ (39 items, 5 factors) refines the KIMS (39 items, 4 factors). The FFMQ separates Observing into Observing and Non-reactivity, and adds a Non-reactivity subscale emphasizing the capacity to let unwanted thoughts pass. If you are already using the FFMQ, switching to KIMS provides no added value; if you prefer a four-factor model aligned with DBT/ACT skill modules, the KIMS is appropriate.
My client scored low (18/40) on KIMS Describing. What does this mean therapeutically?
Low Describing suggests limited emotional vocabulary or difficulty articulating internal experiences—a common feature in alexithymia, trauma, and some anxiety disorders. Therapeutically, this client would benefit from emotion-focused interventions (e.g., emotion naming exercises, body-scan practices, journaling) to develop descriptive capacity. Re-assessment after 8-12 weeks of targeted skill-building should show improvement.
Can KIMS scores predict who will benefit from mindfulness training?
Baseline KIMS scores show modest predictive validity. Lower baseline scores (suggesting room for improvement) sometimes predict greater gains; however, the KIMS is not a strong predictor of who will respond well. Motivation, prior meditation experience, and symptom severity are often stronger predictors than baseline mindfulness scores.
Is the KIMS appropriate for adolescents?
The KIMS was validated in adults. Limited adolescent validation exists. The abstract language and metacognitive demands may exceed the developmental level of younger adolescents. For youth, consider alternatives like the Child and Adolescent Mindfulness Measure (CAMM) or Cognitive and Affective Mindfulness Scale adapted for adolescents (CAMS-A).
Sources
- Baer, R. A., Smith, G. T., & Allen, K. B. (2004). Assessment of mindfulness by self-report: The Kentucky Inventory of Mindfulness Skills (KIMS). Assessment, 11(3), 191-206. DOI: 10.1177/1073191104268029 ↗
How to cite this page
ScholarGate. (2026, June 3). Kentucky Inventory of Mindfulness Skills (KIMS). ScholarGate. https://scholargate.app/en/mindfulness-psychology/kentucky-inventory-mindfulness
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
- Cognitive and Affective Mindfulness ScaleMindfulness Psychology↔ compare
- Five Facet Mindfulness QuestionnaireMindfulness Psychology↔ compare
- Freiburg Mindfulness InventoryMindfulness Psychology↔ compare
- Philadelphia Mindfulness ScaleMindfulness Psychology↔ compare