State Mindfulness Scale (SMS)

Psychological Assessment, 2013

The goal of the present research was to develop and test a novel conceptual model and corresponding measure of state mindfulness-the State Mindfulness Scale (SMS). We developed the SMS to reflect traditional Buddhist and contemporary psychological science models of mindfulness not similarly reflected in extant published measures of the construct. Study 1 exploratory and confirmatory factor analyses supported a higher order 2-factor solution encompassing 1 second-order state mindfulness factor, and 2 first-order factors, one reflecting state mindfulness of bodily sensations and the other state mindfulness of mental events. Study 2 provided cross-sectional evidence of the convergent, discriminant, and incremental convergent validity of SMS scores with respect to other measures of state and trait mindfulness. Study 3, a randomized control experimental mindfulness intervention study, yielded a number of key findings with respect to SMS stability as a function of time and context, construct validity, incremental sensitivity to change in state mindfulness over time, and incremental predictive criterionrelated validity. Findings are discussed with respect to the potential contribution of the SMS to the study of mindfulness as a statelike mental behavior, biopsychobehavioral research on the mechanisms of mindfulness, and clinical evaluation of mindfulness.

Frontiers in Psychology, 2023

Objectives: The Toronto Mindfulness Scale (TMS) and the State Mindfulness Scale (SMS) are two relevant self-report measures of state mindfulness. The purpose of this study was to examine the internal structure and to offer evidence of the reliability and validity of the Spanish versions of the TMS and SMS. Methods: Data from six distinct non-clinical samples in Spain were obtained. They responded to the TMS (n = 119), SMS (n = 223), and measures of trait mindfulness, decentering, non-attachment, depression, anxiety, stress, positive and negative affect, self-criticism, and self-reassurance. The internal structure of the TMS and SMS was analyzed through confirmatory factor analysis. Reliability, construct validity, and sensitivity to change analyses were performed. Results: The correlated two-factor structure (curiosity and decentering) was the best-fitting model for the TMS (CFI = 0.932; TLI = 0.913; RMSEA = 0.100 [0.077-0.123]; WRMR = 0.908). The bifactor structure (general factor, mindfulness of body, and mindfulness of mind) was the best-fitting model for the SMS (CFI = 0.961; TLI = 0.950; RMSEA = 0.096 [0.086-0.106]; WRMR = 0.993). Adequate reliability was found for both measures. The reliability of the SMS specific factors was very poor when controlling for the general factor. The patterns of correlations were mainly as expected and according to previous literature. The TMS and SMS have been able to detect state mindfulness changes after different meditation practices. Conclusion: Validity evidence is provided to support the use of the TMS and SMS in Spanish populations, though the reliability of the SMS specific factors merit revision.

Assessment of mindfulness is essential to understanding its relationships with psychological functioning. Currently, mindfulness is most often assessed with self-report questionnaires. Although additional work is required, mindfulness questionnaires have reasonable psychometric properties and are making important contributions to the understanding of mindfulness and its effects on health and wellbeing. For example, measurement of mindfulness as a multidimensional construct shows that present-moment awareness can be unhelpful unless accompanied by a nonjudgmental, nonreactive stance; moreover, nonjudgment and nonreactivity may be only weakly related to present-moment awareness in people with no meditation experience. Differences between psychological and Buddhist conceptions of mindfulness, although often a source of criticism of mindfulness questionnaires, are argued here to be inevitable and not necessarily problematic.

Mindfulness, 2012

The present study describes the development of and results obtained from the first version of a new mindfulness scale: the Comprehensive Inventory of Mindfulness Experiences beta (CHIME-β). The aim of the present analysis was to investigate two relevant open questions in mindfulness assessment: (1) the coverage of aspects of mindfulness and (2) the type of interrelationships among these aspects. A review of the aspects of mindfulness assessed by eight currently available mindfulness questionnaires led to the identification of nine aspects of mindfulness. The CHIME-β was constructed in order to cover each of these aspects in a balanced way. Initially, principal component and confirmatory factor analyses, as well as reliability and validity analyses, were performed in the entire sample (n0313) of individuals from the general population and mindfulness-based stress reduction (MBSR) groups. The factor structure that emerged from this analysis was further investigated in meditation-trained individuals (n0 144) who had just completed an MBSR intervention. Results suggested a four-factor structure underlying the nine aspects proposed. The relationship between these mindfulness factors appears to be influenced by the degree of meditation experience. In fact, the mindfulness factors showed a greater interconnectedness among mediationtrained participants. Finally, data suggest that a nonavoidant stance plays a central role in mindfulness, while the capacity to put inner experiences into words may be related to mindfulness rather than a component of the construct.

The development and implementation of psychometrically sound behavioral measures of mindfulness are important to advancing the science of mindfulness. To help organize, conceptualize, and guide the development of extant and emerging behavioral measures of mindfulness, we delineate the defining features of behavioral measures of mindfulness and propose a framework consisting of four domains of behavioral assessment of mindfulness. The domains include measurement of (I) objects of mindful awareness, (II) time-course of mindful awareness, (III) sensitivity of mindful awareness, and (IV) attitudes towards present moment experience. We describe the mindfulness process(es), behavioral methods, and review specific measures per domain. Four of the measures exhibit sound psychometric properties and evidence of construct validity as measures of mindfulness processes.

Although alternative methods have been proposed, mindfulness is predominantly measured by means of self-assessment instruments. Until now, several scales have been published and to some degree also psychometrically validated. The number of scales reflects the widespread research interest. While some authors have started to compare the underlying concepts and operationalizations of these scales, up to now no overview has been presented describing, contrasting, and evaluating the different methodological approaches towards measuring mindfulness including questionnaires and alternative approaches. In light of this, the present article summarizes the state of mindfulness measurement. Recommendations on how current measurement practice may be improved are provided, as well as recommendations as to what measurement instruments are deemed to be most appropriate for a particular research context.

Assessment, 2004

Assessment of mindfulness is essential to understanding its relationships with psychological functioning. Currently, mindfulness is most often assessed with self-report questionnaires. Although additional work is required, mindfulness questionnaires have reasonable psychometric properties and are making important contributions to the understanding of mindfulness and its effects on health and wellbeing. For example, measurement of mindfulness as a multidimensional construct shows that present-moment awareness can be unhelpful unless accompanied by a nonjudgmental, nonreactive stance; moreover, nonjudgment and nonreactivity may be only weakly related to present-moment awareness in people with no meditation experience. Differences between psychological and Buddhist conceptions of mindfulness, though often a source of criticism of mindfulness questionnaires, are argued here to be inevitable and not necessarily problematic.

Journal of Psychosomatic Research, 2008

Mindfulness, a concept originally derived from Buddhist psychology, is essential for some well-known clinical interventions. Therefore an instrument for measuring mindfulness is useful. We report here on two studies constructing and validating the Freiburg Mindfulness Inventory (FMI) including a short form. A preliminary questionnaire was constructed through expert interviews and extensive literature analysis and tested in 115 subjects attending mindfulness meditation retreats. This psychometrically sound 30-item scale with an internal consistency of Cronbach alpha = .93 was able to significantly demonstrate the increase in mindfulness after the retreat and to discriminate between experienced and novice meditators. In a second study we broadened the scope of the concept to 86 subjects without meditation experience, 117 subjects with clinical problems, and 54 participants from retreats. Reducing the scale to a short form with 14 items resulted in a semantically robust and psychometrically stable (alpha = .86) form. Correlation 0191-8869/$ -see front matter Ó (H. Walach).