Construction and Methodology

The Thrivability Index measures eight pathways of human flourishing. A dimension earns a place only by meeting three criteria together.

Beneath the three sits one rule: a pathway earns its place only if measuring it does not require deciding whose values are correct. This is why the index includes what is consistently observed across cultures and leaves out what is contested or value-laden. The restraint is the design, and it is what lets the standard cross cultures without taking sides.

Eight is the smallest set that satisfies all three criteria together. The framework draws on five research traditions: positive psychology, self-determination theory, social determinants of health, organizational health science, and behavioral economics. No single tradition covers all eight. The synthesis is the contribution.

Each pathway is grounded in peer-reviewed work, and each is framed as a positive state, a presence of flourishing rather than the absence of a deficit. The lineage below is what the items are built to operationalize.

1. 01

   Mental Health

   The capacity to meet life's demands, recover from stress, and function well, measured as a positive state rather than the absence of symptoms. Grounded in the WHO's positive definition of mental health, the Global Burden of Disease mental disorders epidemiology, and Keyes's Mental Health Continuum, which has replicated across more than fifty countries.

2. 02

   Emotional Wellbeing

   The capacity to process emotional experience and recover from difficulty, and the balance of positive to negative affect, distinct from mental health. Grounded in Fredrickson's Broaden-and-Build theory, the resilience research of Southwick and Charney, and the positive affect literature associated with the PANAS tradition.

3. 03

   Social Wellbeing

   The quality of close relationships and the presence of belonging and safety. Grounded in Holt-Lunstad's meta-analytic work on social connection and mortality, Baumeister and Leary's Need to Belong, and Keyes's social wellbeing work. Holt-Lunstad's meta-analyses associate social connection with mortality risk on a scale comparable to established physical risk factors.

4. 04

   Physical and Biological

   Subjective physical vitality, energy, and rest, framed as a positive state and connected to the modifiable risk factor literature. Grounded in the WHO definition of positive health, the CDC's modifiable risk factor evidence, and the sleep and metabolic health consensus literature.

5. 05

   Financial Stability

   Experienced security and freedom from financial stress, measured as lived experience rather than income level. Grounded in the WHO social determinants framework and the scarcity research of Shafir and Mullainathan, which identifies cognitive burden, not income alone, as the mechanism.

6. 06

   Purpose and Meaning

   A sense of direction and significance in life and work. Grounded in Seligman's PERMA meaning element, validated across many countries, Ryff's psychological wellbeing purpose subscale, and the intrinsic motivation work of Deci and Ryan's Self-Determination Theory.

7. 07

   Personal Growth and Learning

   The capacity to develop, adapt, and exercise competence across life and work. Grounded in the competence need in Self-Determination Theory, with a thirty-year cross-cultural evidence base, Dweck's growth orientation research, and Ryff's personal growth subscale. This dimension sits outside several shorter frameworks and is one of the two the index adds on purpose, because it describes the part of a life most exposed as work and technology change.

8. 08

   Community and Environmental Engagement

   Participation in community and civic life, and connection to place and the natural environment, distinct from close relationships. Grounded in Putnam's social capital research, McMillan and Chavis's Sense of Community theory, and the nature connectedness literature. This is the second deliberate addition, the dimension that lets the standard describe flourishing at the scale of neighborhoods, cities, and regions.

A reader who knows this literature will see two things plainly. Each dimension stands on validated, replicated work. The eight-factor composite, as a single instrument, is new, and is entering validation. The page keeps that line bright.

The instrument follows four design requirements.

Each of the sixteen items is written to operationalize the validated constructs named under its pathway above. The individual Thrivability score is the average of the eight dimension scores, each scored 0 to 10, with the dimension profile reported alongside the composite, because the composite hides the diagnostic information and the profile is where the signal is. A preliminary threshold for thriving sits around 7 of 10, consistent with where comparable scales place the flourishing range, and that threshold is itself something the validation will test rather than assert.

There is also an organizational companion instrument, a parallel sixteen-item form that asks about the conditions an organization creates rather than an individual's experience. Read together, the individual signal and the organizational signal show where conditions and lived experience align and where they diverge. That comparison, and the calibration and certification built on it, is the part Human Thriving Inc. develops and offers. The framework and the brief instrument below are open regardless.

This is a validated design, not yet a validated instrument. The items draw from validated scales. The eight-factor composite has not yet been administered to a study population, subjected to confirmatory factor analysis, or tested for measurement invariance across cultures. That is the work this design sets up, and it is the work the index invites others to share.

Stating the pathway plainly, before any of it is finished, is the point. The forming tense is the credibility.

The framework is open under a Creative Commons Attribution 4.0 International license. You may use it, adapt it, and build on it, including commercially, with attribution. What is open, and ready to take now:

• The eight pathways and their definitions, as published on the standard.
• The three construction criteria and the values rule, so you can see and test the logic of inclusion and exclusion.
• The brief open instrument. Rate each of the eight pathways from 0 to 10 against its published definition, where 0 is not at all and 10 is completely. Eight items, a consistent scale, suited to a baseline and to tracking change within a person or a population over time. Rating against the published definition, rather than against any copied item wording, is what keeps this instrument original and free to use.
• The methodology, meaning the construction criteria, the design requirements, and the validation pathway on this page.
• A citation. Suggested form: Human Thriving Inc. The Thrivability Index, version 1.0, 2026. thrivability.ai. Licensed under CC BY 4.0.

What this open package is for: a baseline reading, within-person or within-population tracking, and independent research and validation. What it does not include, and what a result from it should not be presented as: a clinical diagnosis, a certified or comparable benchmark, or a validated composite. Those depend on work still underway.

THE THRIVABILITY INDEX: Brief Open Instrument
Version 1.0, 2026 · thrivability.ai
Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

Scale: 0 to 10. Anchor 0 = not at all. Anchor 10 = completely.
Scoring: per-pathway score (0 to 10) and overall Thrivability score
= the unweighted average of the eight pathway scores.

INSTRUCTION TO RESPONDENT:
Rate where you are right now on each pathway, against its definition.
There are no right answers.

PATHWAYS:
01 Mental Health
  A state of wellbeing in which you can realize your potential, cope with normal stresses, work productively, and contribute to your community.

02 Emotional Wellbeing
  Your capacity to process emotional experience and to recover from it, not the absence of difficult feeling.

03 Social Wellbeing
  The quality of your close relationships and your sense of belonging.

04 Physical and Biological
  A positive state of physical wellbeing, including energy and vitality, not merely the absence of illness.

05 Financial Stability
  A sense of material security and freedom from economic stress.

06 Purpose and Meaning
  A sense of direction and significance in your life and your work.

07 Personal Growth and Learning
  Your capacity to develop, adapt, and exercise competence across life and work.

08 Community and Environmental Engagement
  Your participation in community and civic life, and your connection to place and the natural world.

CITATION:
Human Thriving Inc. The Thrivability Index, version 1.0, 2026.
thrivability.ai. Licensed under CC BY 4.0.

We welcome independent use and independent validation. If you are a researcher who wants to test the instrument, replicate it, or extend it, that strengthens the standard rather than threatening it, and we would value hearing what you find. The framework is open, so anyone may build their own instantiation of it. The reading under Try It Yourself is ours, the lightest one.

Behind the brief open instrument sits the fuller sixteen-item form, two validated-lineage items per dimension, paired with the organizational companion instrument, now entering the validation pathway above. The calibration that turns raw scores into a comparable reading, the comparison against relevant populations, and the certification of an official reading are the parts Human Thriving Inc. builds and offers, by consent and from aggregated signal only, never from individual responses. The brief instrument and the framework remain open regardless. For research collaboration, validation partnership, or institutional use, the contact is in the footer.

To see the framework working on a single person, Try It Yourself uses the same eight pathways, the same 0 to 10 scale, and the same anchors, and returns an individual a picture of their own shape across the eight. It is the lightest layer of this standard, and a researcher can feel in a couple of minutes how the construction above works from the inside.