The conceptual heart of the new scale is the distinction between hedonic and eudaimonic wellbeing. Hedonic perspectives, tracing back to scholars such as Diener, emphasize pleasure, positive affect, and life satisfaction. Eudaimonic perspectives, rooted in Ryff’s work on psychological wellbeing and self-determination theory, emphasize meaning, self-realization, vitality, personal growth, and functioning in accord with valued goals. The clinical relevance of this split is striking: a person may experience genuine relief from distress without regaining a sense of agency, direction, or coherence in how they are living. A client can report better sleep, less fatigue, and improved mood on a standard depression questionnaire while still endorsing a quiet sense of languishing, a feeling that something essential is missing from their life. Symptom improvement and eudaimonic improvement, the researchers caution, should not be presumed to move in lockstep.

The push for a four-item wellbeing measure emerges from the practical realities of measurement-based care, the practice of routinely collecting client feedback to guide treatment. Therapists who actually respond to this feedback show reduced rates of deterioration and superior outcomes compared to those who do not, yet professional guidelines alone have not translated into consistent real-world adoption. Time pressure, workflow disruption, and inconsistent implementation remain stubborn barriers. The scale-development literature offers little help: a recent review identified 135 instruments capturing various forms of psychological wellbeing, with the Satisfaction with Life Scale and the WHO Quality of Life Brief Version among the most commonly reported. These measures generally show strong reliability and validity, but their comprehensiveness and length make them poorly suited for repeated use in clinical settings. Ultra-brief instruments exist for symptoms, the working alliance, and even cultural humility, but few provide routine feedback on client wellbeing itself.

The construction of the RWS began with a twelve-item pool designed by the authors to capture four theoretically derived domains of eudaimonic wellbeing: social connection and relationships, daily functioning, sense of meaning and purpose, and emotion regulation. Therapists within a large practice-research network were first consulted about their needs, and the resulting items were vetted by three expert psychotherapy researchers with extensive experience in measurement-based care and eudaimonic theory. Their central advice was to keep items representative of the full breadth of wellbeing rather than clustering around a narrow, highly correlated subset. The initial pool was then tested in a clinical sample of 461 new psychotherapy clients, aged 18 and older, actively seeking outpatient mental health care across the United States and not seeking medication treatment. Fourteen additional participants were excluded after failing embedded validity-check items designed to catch inattentive responding.

The exploratory factor analysis in Study 1 used principal axis factoring with direct-oblimin rotation, the appropriate choice given that wellbeing domains were expected to be obliquely correlated rather than independent. The data proved highly suitable for factor analysis, with a Kaiser-Meyer-Olkin value of 0.922, near the top of the sampling adequacy range, and Bartlett’s test of sphericity significant at p less than 0.001. Eigenvalue analysis indicated a single distinct factor, and the final solution was unidimensional, with the four-item scale accounting for 59 percent of variance. Internal consistency was good at alpha 0.79, respectable for a four-item measure. The retained items were: I have felt connected to others; I have been able to keep up with daily responsibilities and routines, like work, school, or tasks at home; I have felt a sense of purpose in my life; and I have been able to manage my emotions. Items are rated from 0, strongly disagree, to 4, strongly agree, with total scores ranging from 0 to 16.

The four retained items proved to represent the broader content of the original pool remarkably well. All 32 correlations between each retained item and each of the eight excluded items were positive and statistically significant. The purpose item was most strongly associated with having a sense of direction, r 0.813, and experiencing life as meaningful or significant, r 0.791. The four-item RWS total correlated 0.844 with the total of the eight excluded items, indicating roughly 71 percent shared variance, and 0.935 with the full twelve-item total, though the authors interpreted that figure descriptively since the retained items are part of the whole. Convergent validity was strong: RWS scores correlated 0.724 with the Schwartz Outcome Scale, 0.636 with the Satisfaction with Life Scale, and 0.788 with the Moments of Flourishing Experience Scale-16. In the opposite direction, scores correlated -0.466 with loneliness, -0.704 with anxiety on the GAD-7, and -0.617 with depression on the PHQ-9, a pattern the authors read as evidence that the scale captures a broader eudaimonic construct rather than merely the absence of distress.

Study 2 moved to an independent non-clinical sample of 924 participants recruited through CloudResearch, a platform shown to produce more diverse and more attentive online samples than traditional pools. Three validity checks screened out 26 inattentive respondents. Confirmatory factor analyses in structural equation modeling compared two candidate models: a single-factor model, in which each item reflects a distinct feature of wellbeing loading onto one general factor, and a bifactor model, in which items share variance with a general factor beyond domain-specific content. The single-factor model fit well, with a comparative fit index of 0.955 and a standardized root mean residual of 0.0391. The root mean square error of approximation reached 0.185, but the authors note that this index is known to be inflated and unreliable in models with very few degrees of freedom, as is inevitable with an ultra-brief scale. The bifactor model was not even identified, with negative degrees of freedom and non-estimable parameters, likely because four items are too few to support such complexity. Standardized loadings on the general factor ranged from 0.729 for emotion regulation to 0.788 for purpose, and reliability rose to alpha 0.83.

Study 3 delivered the most demanding test: replication in a clinical sample of 2,757 clients entering outpatient telehealth psychotherapy in North America, distinct from the Study 1 sample. The single-factor structure held again, with excellent fit indices of CFI 0.990, RMSEA 0.057, and SRMR 0.017, and loadings from 0.534 for daily functioning to 0.666 for purpose. Internal consistency was acceptable at alpha 0.70, lower than in the development samples, a limitation the authors attribute to sample characteristics and the small item count. As hypothesized, RWS scores were negatively correlated with depression, r -0.634, and anxiety, r -0.518. Mean scores told a sensitivity story of their own: clinical clients averaged 8.25 on the 0-to-16 scale, well below the non-clinical average of 12.89. The team also established preliminary interpretive benchmarks. Comparing non-distressed participants, those scoring under 10 on the PHQ-9 and GAD-7, with the combined clinical sample, they set a clinical cut-off of 12, meaning scores below that point more closely resemble treatment-seeking individuals. A reliable change index of 2.27 indicates that a shift of roughly two to two and a half points is unlikely to be measurement error.

The replication of a single-factor structure across clinical and non-clinical samples suggests the RWS taps a higher-order, integrative dimension of wellbeing that cuts across its four traditionally distinct domains, consistent with theoretical perspectives that conceptualize mental health not as the absence of pathology but as the presence of adaptive functioning cohering into a unified experience. The scale occupies a meaningful middle position in its nomological network: strongly related to life satisfaction and flourishing, moderately related to distress and loneliness, and reducible to neither. In practice, the authors envision clinicians administering the four items before every session, consistent with best-practice guidance from the American Psychological Association, and tracking wellbeing alongside symptom measures such as the PHQ-9 and GAD-7. A client whose depression scores improve while their wellbeing scores stagnate may be languishing in ways a symptom checklist alone would never reveal, and that gap is precisely where a therapist can intervene to help re-engage meaningful values, connections, and activities.

The findings come with caveats the authors acknowledge directly. Beyond the inflated RMSEA in Study 2 and the lower clinical-sample reliability, the RWS is not intended to replace disorder-specific symptom assessment and should be used alongside symptom measures when both distress and positive functioning are clinically relevant. Test-retest reliability and longitudinal measurement invariance have not yet been established, so the reliable-change benchmark should be regarded as preliminary pending direct longitudinal evaluation. Replication across additional non-clinical samples is warranted. Still, the scale’s brevity, its consistent psychometric performance across more than 4,100 participants in three studies, and its open-access availability position it as a pragmatic tool for the growing movement to treat psychotherapy as having two parallel aims: alleviating distress and fostering wellbeing. Four questions, it turns out, may be enough to start tracking whether therapy is doing more than reducing symptoms.

Subject of Research: Development and validation of a four-item eudaimonic wellbeing scale for psychotherapy

Article Title: The construction and validation of the Rula wellbeing scale

Article References: Coleman, J. J., Park, J., Davis, J., Owen, J., Tanega, C., Woodhouse, A., Newton, D., & Seiniger, S. (2026). The construction and validation of the Rula wellbeing scale. Frontiers in Psychology, 17, Article 1876391. https://doi.org/10.3389/fpsyg.2026.1876391

Image Credits: AI Generated

DOI: 10.3389/fpsyg.2026.1876391

Keywords: eudaimonic wellbeing, measurement-based care, psychotherapy, scale development, positive psychology, psychometrics, factor analysis, Rula Wellbeing Scale, outcome monitoring, depression, anxiety, clinical assessment