Harmony underpins well-being and sustainability and has been universally recognized across cultures for its profound role in human flourishing. This study developed and validated the Unified Harmony Measure based on the Unified Harmony Framework spanning coexistence, coherence, and continuity across the intrapersonal (Me Harmony), interpersonal (We Harmony), and environmental (Eco Harmony) levels. Scale development involved a multi-phase process, including item generation, expert review, pilot testing, and psychometric analysis. Scale validation was conducted using culturally diverse samples and included classical item analysis, item response theory analysis, correlation and regression analyses, and short form construction. The Unified Harmony Measure demonstrated high internal consistency, theoretically coherent internal structures, and strong associations with conceptually related constructs, supporting its reliability and validity. Its short form also exhibited sound reliability and validity, along with incremental predictive power, enhancing its utility and efficiency for researchers and practitioners. This Unified Harmony Measure offers useful insights and psychometric tools for understanding and enhancing harmony in diverse contexts, with practical implications for interpreting harmony scores and designing targeted interventions.
CarrenoD. F.EisenbeckN.Pérez-EscobarJ. A.García-MontesJ. M. (2021). Inner harmony as an essential facet of well-being: A multinational study during the COVID-19 pandemic. Frontiers in Psychology, 12, 648280. https://doi.org/10.3389/fpsyg.2021.648280
3.
ChangC. H.ReeveB. B. (2005). Item response theory and its applications to patient reported outcomes measurement. Evaluation & the Health Professions, 28(3), 264–282. https://doi.org/10.1177/0163278705278275
4.
ChenC. C.ÜnalA. F.LeungK.XinK. R. (2016). Group harmony in the workplace: Conception, measurement, and validation. Asia Pacific Journal of Management, 33, 903–934. https://doi.org/10.1007/s10490-016-9457-0
5.
CohenJ. (1988). Statistical power analysis for the behavioral sciences (2nd ed.). Lawrence Erlbaum.
6.
CohenS.KamarckT.MermelsteinR. (1983). A global measure of perceived stress. Journal of Health and Social Behavior, 24(4), 385–396. https://doi.org/10.2307/2136404
7.
DambrunM. (2017). Self-centeredness and selflessness: Happiness correlates and mediating psychological processes. PeerJ, 5, e3306. https://doi.org/10.7717/peerj.3306
8.
Delle FaveA.BassiM.AllegriB.CiliaS.FalautanoM.GorettiB.GrobberioM.MinacapelliE.PattiniM.PietrolongoE.ValsecchiM.AmatoM. P.LugaresiA.PattiF. (2017). Beyond disease: Happiness, goals, and meanings among persons with multiple sclerosis and their caregivers. Frontiers in Psychology, 8, 2216. https://doi.org/10.3389/fpsyg.2017.02216
9.
Delle FaveA.BrdarI.FreireT.Vella-BrodrickD.WissingM. P. (2011). The eudaimonic and hedonic components of happiness: Qualitative and quantitative findings. Social Indicators Research, 100, 185–207. https://doi.org/10.1007/s11205-010-9632-5
10.
Delle FaveA.BrdarI.WissingM. P.AraujoU.CastroS. A.FreireT.Hernández-PozoM. D. R.JoseP.MartosT.NafstadH. E.NakamuraJ.SinghK.Soosai-NathanL. (2016). Lay definitions of happiness across nations: The primacy of inner harmony and relational connectedness. Frontiers in Psychology, 7, 30. https://doi.org/10.3389/fpsyg.2016.00030
11.
Delle FaveA.WissingM. P.BrdarI. (2022). The investigation of harmony in psychological research. In LiC.DuringD. (Eds.), Harmony as a virtue, the virtue series (pp. 253–227). Oxford University Press.
12.
Delle FaveA.WissingM. P.BrdarI. (2023). Beyond polarization towards dynamic balance: Harmony as the core of mental health. Frontiers in Psychology, 14, 1177657. https://doi.org/10.3389/fpsyg.2023.1177657
13.
DienerE.EmmonsR. A.LarsenR. J.GriffinS. (1985). The Satisfaction with Life Scale. Journal of Personality Assessment, 49(1), 71–75. https://doi.org/10.1207/s15327752jpa4901_13
14.
Di FabioA.TsudaA. (2018). The psychology of harmony and harmonization: Advancing the perspectives for the psychology of sustainability and sustainable development. Sustainability, 10(12), 4726. https://doi.org/10.3390/su10124726
15.
EarleyP. C. (1997). Face, harmony, and social structure: An analysis of organizational behavior across cultures. Oxford University Press.
16.
GarciaD.Al NimaA.KjellO. N. (2014). The affective profiles, psychological well-being, and harmony: Environmental mastery and self-acceptance predict the sense of a harmonious life. PeerJ, 2, e259. https://doi.org/10.7717/peerj.259
17.
GotiseP.UpadhyayB. K. (2018). Happiness from ancient Indian perspective: Hitopadeśa. Journal of Happiness Studies, 19(3), 863–879. https://doi.org/10.1007/s10902-017-9853-2
HuL.-t.BentlerP. M. (1998). Fit indices in covariance structure modeling: Sensitivity to underparameterized model misspecification. Psychological Methods, 3(4), 424–453. https://doi.org/10.1037/1082-989X.3.4.424
20.
HuangL. L. (1999). Interpersonal harmony and conflict: Indigenous theories and research. Gui Guan. (in Chinese)
21.
HwangK. K. (1997–1998). Guanxi and Mientze: Conflict resolution in Chinese society. Intercultural Communication Studies VII, 1, 17–42.
KjellO. N. E. (2011). Sustainable well-being: A potential synergy between sustainability and well-being research. Review of General Psychology, 15(3), 255–266. https://doi.org/10.1037/a0024603
24.
KjellO. N. E.DaukantaitėD.HefferonK.SikströmS. (2016). The harmony in life scale complements the Satisfaction with Life Scale: Expanding the conceptualization of the cognitive component of subjective well-being. Social Indicators Research, 126(2), 893–919. https://doi.org/10.1007/s11205-015-0903-z
25.
KjellO. N. E.DaukantaitėD.SikströmS. (2021). Computational language assessments of harmony in life—Not satisfaction with life or rating scales—Correlate with cooperative behaviors. Frontiers in Psychology, 12, 601679. https://doi.org/10.3389/fpsyg.2021.601679
26.
KjellO. N. E.DienerE. (2021). Abbreviated three-item versions of the Satisfaction with Life Scale and the harmony in life scale yield as strong psychometric properties as the original scales. Journal of Personality Assessment, 103(2), 183–194. https://doi.org/10.1080/00223891.2020.1737093
27.
KozanM. K. (1997). Culture and conflict management: A theoretical framework. The International Journal of Conflict Management, 8, 338–360. https://doi.org/10.1108/eb022801
28.
KroenkeK.SpitzerR. L.WilliamsJ. B. (2003). The Patient Health Questionnaire-2: Validity of a two-item depression screener. Medical Care, 41(11), 1284–1292. https://doi.org/10.1097/01.MLR.0000093487.78664.3C
29.
KwanV. S. Y.BondM. H.SingelisT. M. (1997). Pancultural explanations for life satisfaction: Adding relationship harmony to self-esteem. Journal of Personality and Social Psychology, 73(5), 1038–1051. https://doi.org/10.1037/0022-3514.73.5.1038
30.
LeeE. H. (2012). Review of the psychometric evidence of the perceived stress scale. Asian Nursing Research, 6(4), 121–127. https://doi.org10.1016/j.anr.2012.08.004
31.
LeeR. M.RobbinsS. B. (1995). Measuring belongingness: The social connectedness and the social assurance scales. Journal of Counseling Psychology, 42(2), 232–241. https://doi.org/10.1037/0022-0167.42.2.232
32.
LeungK.KochP. T.LuL. (2002). A dualistic model of harmony and its implications for conflict management in Asia. Asia Pacific Journal of Management, 19, 201–220. https://doi.org/10.1023/A:1016287501806
LomasT.IshikawaY.Diego-RosellP.DalyJ.EnglishC.HarterJ.LaiA. Y. (2022). Balance and harmony in the Gallup World Poll: The development of the Global Wellbeing Initiative module. International Journal of Wellbeing, 12(4), 1–19. https://doi.org/10.5502/ijw.v12i4.2655
38.
LomasT.LaiA. Y.ShibaK.Diego-RosellP.UchidaY.VanderWeeleT. J. (2022). Insights from the first global survey of balance and harmony. In HelliwellJ. F.LayardR.SachsJ. D. J.-E.NeveDeAkninL. B.WangS. (Eds.), World happiness report 2022 (pp. 127–154). Sustainable Development Solutions Network.
39.
LomasT.PawelskiJ. O.VanderWeeleT. J. (2024). Flourishing as “sustainable well-being”: Balance and harmony within and across people, ecosystems, and time. The Journal of Positive Psychology, 20(2), 203–218.
40.
MichalosA. C.RobinsonS. R. (2012). The good life: Eighth century to third century BCE. In LandK. C.MichalosA. C.Joseph SirgyM. (Eds.), Handbook of social indicators and quality of life research (pp. 23–61). Springer.
41.
MorlingB.FiskeS. T. (1999). Defining and measuring harmony control. Journal of Research in Personality, 33(4), 379–414. https://doi.org/10.1006/jrpe.1999.2254
42.
NadarL. (1990). Harmony ideology: Justice and control in a Zapotec mountain village. Stanford University Press.
PavotW.DienerE. (2008). The Satisfaction with Life Scale and the emerging construct of life satisfaction. The Journal of Positive Psychology, 3(2), 137–152. https://doi.org/10.1080/17439760701756946
45.
ReiseS. P.MooreT. M.HavilandM. G. (2013). Applying unidimensional item response theory models to psychological data. In GeisingerK. F.BrackenB. A.CarlsonJ. F.HansenJ.-I. C.KuncelN. R.ReiseS. P.RodriguezM. C. (Eds.), APA handbook of testing and assessment in psychology: Vol. 1. Test theory and testing and assessment in industrial and organizational psychology (pp. 101–119). American Psychological Association. https://doi.org/10.1037/14047-006
46.
RodriguezA.ReiseS. P.HavilandM. G. (2016). Evaluating bifactor models: Calculating and interpreting statistical indices. Psychological Methods, 21(2), 137–150. https://doi.org/10.1037/met0000045
47.
SamejimaF. (1969). Estimation of latent ability using a response pattern of graded scores. Psychometrika Monograph Supplement, 34(4, Pt. 2), 100.
SilversteinA.StroumsaG. G.BlidsteinM. (Eds.). (2015). The Oxford handbook of the Abrahamic religions. Oxford University Press.
50.
SundararajanL. (2013). The Chinese notions of harmony, with special focus on implications for cross-cultural and global psychology. The Humanistic Psychologist, 41(1), 25–34. https://doi.org/10.1080/08873267.2012.694125
51.
TavakolM.DennickR. (2011). Making sense of Cronbach’s alpha. International Journal of Medical Education, 2, 53–55. https://doi.org/10.5116/ijme.4dfb.8dfd
52.
ThieleL. P. (2011). Indra’s net and the Midas touch: Living sustainably in a connected world. MIT Press.
53.
UchidaY.KitayamaS. (2009). Happiness and unhappiness in East and West: Themes and variations. Emotion, 9(4), 441–456. https://doi.org/10.1037/a0015634
54.
WeiM.SuJ. C.CarreraS.LinS. P.YiF. (2013). Suppression and interpersonal harmony: A cross-cultural comparison between Chinese and European Americans. Journal of Counseling Psychology, 60(4), 625–633. https://doi.org/10.1037/a0033413
55.
WissingM. P.SchutteL.LiversageC. (2022). Embracing well-being in diverse contexts: The third wave of positive psychology and African imprint. In SchutteL.GuseT.WissingM. P. (Eds.), Embracing well-being in diverse African contexts: Research perspectives (pp. 3–30). Springer. https://doi.org/10.1007/978-3-030-85924-4_1
56.
WongP. T.BowersV. (2019). Mature happiness and global wellbeing in difficult times. In SiltonN. R. (Ed.), Scientific concepts behind happiness, kindness, and empathy in contemporary society (pp. 112–134). IGI Global. https://doi.org/10.4018/978-1-5225-5918-4.ch006
ZhaoY.HambletonR. K. (2017). Practical consequences of item response theory model misfit in the context of test equating with mixed-format test data. Frontiers in Psychology, 8, 484. https://doi.org/10.3389/fpsyg.2017.00484
