Integrative Vitality Scale

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Abstract

The Integrative Vitality Scale (IVS) is a modern psychometric instrument designed to capture the multidimensional nature of human Vitality by bridging ancient philosophical concepts with contemporary psychological theory. Historically, Vitality was viewed through the lens of vitalism as an essential life force, but modern medical paradigms often reduced it to purely physiological metrics like heart rate or grip strength. Recognizing that this mechanistic view strips the construct of its subjective, experiential richness, researchers developed the IVS to measure Vitality as a holistic state encompassing both physical restoration and psychological drive.

At its core, the IVS evaluates two distinct but deeply interconnected domains: physical Vitality and psychological Vitality. The physical dimension draws inspiration from Traditional Eastern Medicine, specifically the concept of Qi, framing physical Vitality not merely as high energy output, but as the body's capacity to rest, recover, and maintain autonomic balance. The psychological dimension is grounded in Self-Determination Theory, conceptualizing mental Vitality as an intrinsically motivated state of engagement and joy, distinct from externally driven or pathological high-energy states like mania.

By providing a nuanced, non-circular method of assessing Vitality, the IVS serves as a critical tool for researchers and clinicians focused on healthy aging, well-being, and resilience. It moves beyond simply asking individuals if they feel energetic by probing the underlying mechanisms of restorative rest and autonomous motivation. This makes the scale particularly valuable for tracking therapeutic outcomes, such as the benefits of mindfulness interventions, and for predicting long-term psychological health.

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Keywords
Vitality
Self-Determination Theory
Traditional Eastern Medicine
well-being
healthy aging
psychometrics
Intrinsic Motivation

📊 Psychometric Scorecard

Structure
Multidimensional
Cronbach's α
0.89
Validation Country
📍 Republic of Korea

Authors

👤 Seok In Yoon
✉ [email protected]
🏛 Department of Neuropsychiatry, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea

👤 Hui Yeong Park
🏛 Department of Neuropsychiatry, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea

👤 Sun Yong Chung
🏛 Department of Neuropsychiatry, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea

👤 Jong Woo Kim
🏛 Department of Neuropsychiatry, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea

Purpose

The primary purpose of the Integrative Vitality Scale is to provide a comprehensive, theoretically grounded measure of Vitality that avoids the circular reasoning found in earlier instruments. Previous questionnaires often assessed Vitality simply by asking respondents if they felt vital or full of energy, which fails to capture the underlying mechanisms generating that energy. The IVS fills this critical gap by operationalizing Vitality through specific, observable states of physical relaxation and intrinsic psychological motivation.

For clinicians and researchers, the IVS offers a sophisticated tool to monitor healthy aging and holistic well-being. It is particularly useful for distinguishing between healthy, sustainable energy and pathological or stress-driven hyperactivity. By capturing both the capacity to recover physically and the drive to engage psychologically, the scale provides actionable insights for interventions aimed at reducing burnout, alleviating fatigue, and promoting long-term psychological flourishing.

Construct

The construct of integrative Vitality measured by the IVS represents an optimal state of human functioning characterized by balanced physical energy and autonomous psychological engagement. The theoretical framework synthesizes Traditional Eastern Medicine (TEM) and Self-Determination Theory (SDT). From the TEM perspective, physical Vitality is conceptualized as the harmonious flow of Qi, which in modern physiological terms translates to autonomic nervous system balance. It emphasizes the relaxation response—the body's ability to recover from stress, replenish resources, and maintain resilience, rather than merely outputting physical force.

Psychological Vitality, informed by SDT, is defined as an intrinsically motivated state where an individual feels genuine interest, joy, and active engagement in life. Unlike extrinsic motivation, which relies on external rewards and is prone to depletion, Intrinsic Motivation provides a sustainable source of psychological energy. Importantly, the IVS distinguishes this healthy psychological Vitality from impulsive or manic states, framing it as a self-regulated, harmonious enthusiasm that fosters personal growth and well-being.

Validity

The validation process for the IVS demonstrated robust psychometric properties across multiple dimensions. Content validity was initially established through rigorous expert review by medical doctors and clinical psychologists, ensuring the items accurately reflected the theoretical constructs without ambiguity. Convergent validity was confirmed through strong correlations with established Vitality measures, while discriminant validity was successfully demonstrated by showing low correlations with pathological high-energy states, such as hypomania. This crucial distinction proves the scale measures healthy, sustainable energy rather than clinical hyperactivity.

Furthermore, the scale exhibited excellent criterion validity, showing significant negative associations with clinical symptoms like depression and fatigue, alongside positive associations with overall quality of life. Notably, the researchers established incremental validity; the IVS successfully predicted levels of depression, fatigue, and well-being even when controlling for existing Vitality scales. This indicates that the IVS captures unique variance in human flourishing that older instruments miss. Finally, the scale's sensitivity to clinical change was validated through a pre-post study where scores significantly improved following a 16-week mindfulness intervention.

Figure 4
Conceptual model of integrative Vitality. This figure illustrates the structure of integrative Vitality. Physical Vitality is a positive experience that is obtained through relaxation and rest. Psychological Vitality is the intrinsically motivated state of being active, feeling interested, and having fun in life. This Pyramid model suggests that psychological Vitality is based on physical Vitality. The arrows within the dotted circle indicate that integrative Vitality is established during the process of circulating physical and psychological Vitality. Integrative Vitality refers to a state in which both physical and psychological Vitality are high, suggesting a balance and harmony between rest (relaxation) and activity (awakening).

Reliability

The Integrative Vitality Scale demonstrates excellent reliability, making it a highly dependable tool for both cross-sectional and longitudinal research. Internal consistency was rigorously evaluated, yielding Cronbach's alpha coefficients ranging from 0.89 to 0.94 for the total scale and its subscales. These values indicate a very high degree of interrelatedness among the items, well above the standard acceptable threshold, suggesting that the items reliably measure the same underlying constructs without excessive redundancy.

In addition to internal consistency, the temporal stability of the IVS was confirmed through test-retest reliability analysis. The test-retest correlation coefficients ranged from 0.71 to 0.80, demonstrating that the scale produces consistent results over time when administered to the same individuals. This level of stability is particularly important for a measure of Vitality, as it confirms the scale captures a relatively stable trait-like capacity for energy and recovery, rather than just transient daily fluctuations in mood.

Factor Analysis

The structural integrity of the IVS was established through a comprehensive two-step factor analytic approach utilizing independent samples. Initially, an exploratory factor analysis was conducted on a sample of 348 participants to uncover the underlying latent structure of the preliminary item pool. This analysis clearly delineated a two-factor solution, perfectly aligning with the theoretical framework of distinct physical and psychological Vitality dimensions.

Subsequently, a confirmatory factor analysis was performed on a separate sample of 349 participants to verify this two-factor model. The CFA results provided strong empirical support for the proposed structure, demonstrating that the items loaded significantly and exclusively onto their designated factors. This rigorous structural validation ensures that researchers can confidently use both the overarching total Vitality score and the specific subscale scores to differentiate between an individual's physical restorative capacity and their psychological motivational drive.

Figure 1
(A) the partially mediated model; (B) the fully mediated model; IVS-Phys. = Integrative Vitality Scale-Physical Vitality; IVS-Psychol. = Integrative Vitality Scale-Psychological Vitality; BPNSS = Korean version of the Basic Psychological Need Satisfaction Scale.
Figure 2
Confirmatory factor analysis of the two-factor model. The final 22-item Integrative Vitality Scale was analyzed. The standardized coefficients are presented. E = measurement error. All coefficients are significant at p < 0.001.
Figure 3
Standardized path coefficient of the research model. IVS-Phys., Integrative Vitality Scale-Physical Vitality; IVS-Psychol., Integrative Vitality Scale-Psychological Vitality; BPNSS, Korean version of the Basic Psychological Need Satisfaction Scale. ***p < 0.001.

Subscales

Subscale Items Description
Physical Vitality Measures the positive physical experience of relaxation, rest, autonomic balance, and the capacity to recover energy.
Psychological Vitality Measures an intrinsically motivated state of being active, feeling genuine interest, and experiencing joy in life.

Instrument

Test Type Self-report questionnaire
Format Likert-type response format
Scoring Total score and two subscale scores (Physical and Psychological Vitality)
Language Korean
Population General population, Adults
Age Group Adults
Administration Online survey

Figures

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Winter ice diving underwater in a quarry in Canada

Integrative Vitality Scale Items

📋 Items are currently not available

The individual items of this scale are not publicly available. Researchers interested in using this instrument should contact the original authors directly to request the scale materials.

Sample

The validation utilized two distinct online survey samples of Korean Adults for exploratory (n = 348) and confirmatory (n = 349) factor analyses. Additionally, a pre-post comparison sample (n = 28) was used to evaluate changes after a 16-week mindfulness training intervention.

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Cite This Paper

Seok In Yoon, Hui Yeong Park, Sun Yong Chung, Jong Woo Kim (2024). Integrative Vitality Scale. Frontiers in public health. https://doi.org/10.3389/fpubh.2024.1452068

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Cite this article

Mohammed looti (2026). Integrative Vitality Scale. PSYCHOLOGICAL SCALES. Retrieved from https://scales.arabpsychology.com/s/integrative-vitality-scale/

Mohammed looti. "Integrative Vitality Scale." PSYCHOLOGICAL SCALES, 14 Aug. 2026, https://scales.arabpsychology.com/s/integrative-vitality-scale/.

Mohammed looti. "Integrative Vitality Scale." PSYCHOLOGICAL SCALES, 2026. https://scales.arabpsychology.com/s/integrative-vitality-scale/.

Mohammed looti (2026) 'Integrative Vitality Scale', PSYCHOLOGICAL SCALES. Available at: https://scales.arabpsychology.com/s/integrative-vitality-scale/.

[1] Mohammed looti, "Integrative Vitality Scale," PSYCHOLOGICAL SCALES, vol. X, no. Y, ص Z-Z, August, 2026.

Mohammed looti. Integrative Vitality Scale. PSYCHOLOGICAL SCALES. 2026;vol(issue):pages.

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