Frankl VE. Man’s search for meaning. Herder; 1979.
King LA, Heintzelman SJ, Ward SJ. Beyond the search for meaning: a contemporary science of the experience of meaning in life. Curr Dir Psychol Sci. 2016;25(4):211–6.
Scheier MF, Wrosch C, Baum A, Cohen S, Martire LM, Matthews KA, et al. The life engagement test: assessing purpose in life. J Behav Med. 2006;29(3):291–8.
Park C, Folkman S. Meaning in the context of stress and coping. Rev Gen Psychol. 1997;1(2):115–44.
Ryff CD, Singer B. The contours of positive human health. Psychol Inq. 1998;9(1):1–28.
Steger M, Frazier P, Kaler M, Oishi S. The meaning in life questionnaire: assessing the presence of and search for meaning in life. J Couns Psychol. 2006;53(1):80–93.
Steger M. Meaning in Life. Oxford handb posit psychol (2 Ed) [Internet]. 2009 [cited 2021 Sep 30]; Available from: https://www.oxfordhandbooks.com/view/https://doi.org/10.1093/oxfordhb/9780195187243.001.0001/oxfordhb-9780195187243-e-064
Baumeister RF. Meanings of life. New York: The Guilford Press; 1991.
Klinger E. The search for meaning in evolutionary perspective and its clinical implications. In: The human quest for meaning: a handbook of psychological research and clinical applications. Mahwah, NJ, US: Lawrence Erlbaum Associates Publishers; 1998. p. 27–50.
Maddi SR. Creating meaning through making decisions. In: The human quest for meaning: theories, research, and applications, 2nd ed. New York, NY, US: Routledge/Taylor & Francis Group; 2012. p. 57–80. (Personality and clinical psychology series.).
Steger M, Kashdan TB, Sullivan BA, Lorentz D. Understanding the search for meaning in life: personality, cognitive style, and the dynamic between seeking and experiencing meaning. J Pers. 2008;76(2):199–228.
Garrison YL, Lee KH. Emotionality and tolerance of uncertainty and their associations with meaning in life among Korean college students. Pers Individ Dif. 2017;1(112):26–30.
Maryam MA, Mahmoud MA. An investigation of the relationship between depression, meaning in life and adult hope. Procedia - Soc Behav Sci. 2014;21(114):598–601.
Li P, Wong Y, Chao R. Happiness and meaning in life: Unique, differential, and indirect associations with mental health. Couns Psychol Q. 2019;32(3):396–414.
Bailey T, Phillips L. The influence of motivation and adaptation on students’ subjective well-being, meaning in life and academic performance. High Educ Res Dev. 2015;35(2):201–16.
Mason HD. Meaning as a coping resource: experiences of nursing students. J Psychol Africa [Internet]. 2017;27(1):74–9. https://doi.org/10.1080/14330237.2016.1268294.
Van Tongeren DR, Green JD, Davis DE, Hook JN, Hulsey TL. Prosociality enhances meaning in life. J Posit Psychol [Internet]. 2016;11(3):225–36. https://doi.org/10.1080/17439760.2015.1048814.
Yu EA, Chang EC. Meaning in life as a predictor of optimism: how parents mattering matters to Asian and European Americans. Pers Individ Dif. 2019;138(1):366–9.
Temane L, Khumalo IP, Wissing MP. Validation of the meaning in life questionnaire in a South African context. J Psychol Africa. 2014;24(1):51–60.
Kleiman EM, Adams LM, Kashdan TB, Riskind JH. Gratitude and grit indirectly reduce risk of suicidal ideations by enhancing meaning in life: evidence for a mediated moderation model. J Res Pers. 2013;47(5):539–46.
Park J, Baumeister RF. Meaning in life and adjustment to daily stressors. J Posit Psychol. 2017;12(4):333–41.
Klein N. Prosocial behavior increases perceptions of meaning in life. J Posit Psychol. 2017;12(4):354–61.
Trzebiński J, Cabański M, Czarnecka JZ. Reaction to the COVID-19 pandemic: the influence of meaning in life, life satisfaction, and assumptions on world orderliness and positivity. J Loss Trauma. 2020;25(6–7):544–57.
Battista J, Almond R. The development of meaning in life. Psychiatry. 1973;36(4):409–27.
Reker G. Meaning in life of young, middle-aged, and older adults: factorial validity, age, and gender invariance of the personal meaning index (PMI). Pers Individ Dif. 2005;38(1):71–85.
Francis L, Hills P. The development of the meaning in life index (MILI) and its relationship with personality and religious behaviours and beliefs among UK undergraduate students. Ment Heal Relig Cult. 2008;11(2):211–20.
Steger M, Kawabata Y, Shimai S, Otake K. The meaningful life in Japan and the United States: levels and correlates of meaning in life. J Res Pers. 2008;42(3):660–78.
Góngora V, Solano AC. Validación del cuestionario de significado de la vida MLQ en población adulta y adolescente argentina. Rev Interam Psicol J Psychol. 2011;45(3):395–404.
Boyraz G, Lightsey OR, Can A. The Turkish version of the meaning in life questionnaire: assessing the measurement invariance across Turkish and American adult samples. J Pers Assess. 2013;95(4):423–31.
Chan WCH. Factor structure of the Chinese version of the meaning in life questionnaire among Hong Kong Chinese caregivers. Heal Soc Work. 2014;39(3):135–43.
Figueiredo-Damásio B, Koller SH. Meaning in life questionnaire: adaptation process and psychometric properties of the Brazilian version. Rev Latinoam Psicol [Internet]. 2015;47(3):185–95.
Singh K, Junnarkar M, Jaswal S, Kaur J. Validation of meaning in life questionnaire in hindi (MLQ-H). Ment Heal Relig Cult. 2016;19(5):448–58.
Rose LM, Zask A, Burton LJ. Psychometric properties of the meaning in life questionnaire (MLQ) in a sample of Australian adolescents. Int J Adolesc Youth. 2017;22(1):68–77.
Chika JB, Ekpedoho EA, Ifeagwazi CM, Iorfa SK, Nwonyi SK. Psychometric properties of the meaning in life questionnaire – Hausa version among internally displaced persons in Nigeria. Transcult Psychiatry. 2019;56(1):103–22.
Negri L, Bassi M, Delle FA. Italian validation of the meaning in life questionnaire: factor structure, reliability, convergent, and discriminant validity. Psychol Rep. 2020;123(2):578–600.
Naghiyaee M, Bahmani B, Asgari A. The psychometric properties of the meaning in life questionnaire (MLQ) in patients with life-threatening illnesses. Sci World J. 2020;2020:8361602.
Wilson-Fadiji A, Meiring L, Wissing MP. Understanding well-being in the Ghanaian context: linkages between lay conceptions of well-being and measures of hedonic and eudaimonic well-being. Appl Res Qual Life. 2021;16(2):649–77.
Atienza FL, Pons D, Balaguer I, García-Merita M. Propiedades psicométricas de la Escala de Satisfacción con la Vida en adolescentes. Psicothema [Internet]. 2000;12(12):314–9.
Caycho-Rodríguez T, Ventura-León J, Azabache-Alvarado K, Reyes-Bossio M, Cabrera-Orosco I. Validez e invariancia factorial del Índice de Bienestar general (WHO-5 WBI) en universitarios peruanos. Rev Ciencias La Salud. 2020;18(3):1–15.
Villarreal-Zegarra D, Copez-Lonzoy A, Bernabé-Ortiz A, Melendez-Torres GJ, Bazo-Alvarez JC. Valid group comparisons can be made with the patient health questionnaire (PHQ-9): a measurement invariance study across groups by demographic characteristics. PLoS One [Internet]. 2019;14(9):0221717. https://doi.org/10.1371/journal.pone.0221717.
Asociación Mundial de Medicina. Declaración de Helsinki de la Asociación Médica Mundial - Principios éticos para las investigaciones médicas en seres humanos [Internet]. Asociación Mundial de Medicina. 2015. Available from: https://bit.ly/3MlYIvv
Rhemtulla M, Brosseau-Liard PÉ, Savalei V. When can categorical variables be treated as continuous? A comparison of robust continuous and categorical SEM estimation methods under suboptimal conditions. Psychol Methods. 2012;17(3):354–73.
Yuan K-H, Bentler PM. Three Likelihod-based methods for mean and covariance structure analysis with non-normal missing data. Socio Methodol. 2000;30(1):165–200.
Kline RB. Principles and practice of structural equation modeling, 4th ed. Principles and practice of structural equation modeling, 4th ed. New York, NY, US: Guilford Press; 2016. xvii, 534–xvii, 534. (Methodology in the social sciences.).
Schumacker RE, Lomax RG. A Beginner’s guide to structural equation modeling: Fourth Edition. Routledge; 2015.
Cronbach LJ. Coefficient alpha and the internal structure of tests. Psychometrika [Internet]. 1951;16(3):297–334. https://doi.org/10.1007/BF02310555.
McDonald RP. Test theory: a unified treatment. Taylor & Francis; 1999.
Viladrich C, Angulo-Brunet A, Doval E. Un viaje alrededor de alfa y omega para estimar la fiabilidad de consistencia interna. An Psicol. 2017;33(3):755–82.
Chen FF. Sensitivity of goodness of fit indexes to lack of measurement invariance. Struct Equ Model [Internet]. 2007;14(3):464–504. https://doi.org/10.1080/10705510701301834.
Rosseel Y. lavaan: an r package for structural equation modeling. J Stat Softw [Internet]. 2012;48(2):1–36.
Jorgensen TD, Pornprasertmanit S, Schoemann AM, Rosseel Y. semTools: Useful tools for structural equation modeling [Internet]. 2018. Available from: https://cran.r-project.org/package=semTools
R Studio Team. A language and environment for statistical computing. R Foundation for Statistical Computing; 2021.
R Core Team. A language and environment for statistical computing. Vienna, Austria: R Foundation for Statistical Computing; 2019.
Finney SJ, DiStefano C. Nonnormal and categorical data in structural equation modeling. In: In G r Hancock & R O Mueller (Hrsg) Structural equation modeling: a second course. Greenwich: Connecticut: Information Age Publishing; 2006. p. 269–314.
Yu EA, Chang EC. Relational meaning in life as a predictor of interpersonal well-being: a prospective analysis. Pers Individ Dif. 2021;1:168.
Li J, Dou K, Liang Y. The relationship between presence of meaning search for meaning and subjective well-being: a three-level meta-analysis based on the meaning in life questionnaire. J Happiness Stud [Internet]. 2021;22(1):467–89. https://doi.org/10.1007/s10902-020-00230-y.
Datu JAD, Yuen M. Factorial validity of meaning in life questionnaire in Hong Kong secondary school students: a construct validation approach. Couns Psychol Q. 2021;35(2):467.
Steger M, Oishi S, Kesebir S. Is a life without meaning satisfying? The moderating role of the search for meaning in satisfaction with life judgments. J Posit Psychol. 2011;6(3):173–80.
Gross GM, Laws H, Park CL, Hoff R, Hoffmire CA. Meaning in life following deployment sexual trauma: prediction of posttraumatic stress symptoms, depressive symptoms, and suicidal ideation. Psychiatry Res. 2019;1(278):78–85.
Menold N. How do reverse-keyed items in inventories affect measurement quality and information processing? Field Methods. 2019;32(2):140–58.
Salazar MS. El dilema de combinar ítems positivos y negativos en escalas. Psicothema. 2015;27(2):192–9.
Suárez-Alvarez J, Pedrosa I, Lozano LM, García-Cueto E, Cuesta M, Muñiz J. Using reversed items in likert scales: a questionable practice. Psicothema. 2018;30(2):149–58.
Woods CM. Careless responding to reverse-worded items: Implications for confirmatory factor analysis. J Psychopathol Behav Assess. 2006;28(3):189–94.
Vela JC, Karaman MA, Garcia C, Aguilar A. Evaluation of Spanish versions of meaning in life and hope measures with Latinx students. Meas Eval Couns Dev. 2020;53(2):104–16.
Hallford DJ, Mellor D, Cummins RA, McCabe MP. Meaning in Life in earlier and later older-adulthood: confirmatory factor analysis and correlates of the meaning in life questionnaire. J Appl Gerontol. 2018;37(10):1270–94.
Tahereh D, Rasoul Y, Hossein TM, Reyhaneh D, Jamal A. The relationship between meaning in life and depression, anxiety and stress status among college students of Iran university of medical sciences in 2013. J Educ Health Promot [Internet]. 2013;1(3):83–92.
Singelis TM, Triandis HC, Bhawuk DPS, Gelfand MJ. Horizontal and vertical dimensions of individualism and collectivism: a theoretical and measurement refinement. [Internet]. 2016;29(3):240–75. https://doi.org/10.1177/106939719502900302.
Koltko-Rivera ME. The psychology of worldviews. Rev General Psychol [Internet]. 2004;8(1):3–58. https://doi.org/10.1037/1089-2618.104.22.168.
Zinbarg RE, Revelle W, Yovel I, Li W. Cronbach’s, α Revelle’s β and McDonald’s ω H: Their relations with each other and two alternative conceptualizations of reliability. Psychometrika. 2005;70(1):123–33.
Dimitrov DM. Testing for factorial invariance in the context of construct Validation. Meas Eval Couns Dev. 2010;43(2):121–49.
Svetina D, Rutkowski L, Rutkowski D. Multiple-group invariance with categorical outcomes using updated guidelines: an illustration using Mplus and the lavaan/semtools packages. Struct Equ Model. 2020;27(1):111–30.
Jauncey T, Strodl E. Love of god, others, and self and their association with satisfaction with life and mental health for christians. J Spiritual Ment Heal. 2018;20(3):239–60.
Steger M, Oishi S, Kashdan T. Meaning in life across the life span: levels and correlates of meaning in life from emerging adulthood to older adulthood. J Posit Psychol. 2009;4(1):43–52.
Park N, Park M, Peterson C. When is the search for meaning related to life satisfaction? Appl Psychol Heal Well-Being [Internet]. 2010;2(1):1–13. https://doi.org/10.1111/j.1758-0854.2009.01024.x.
Park H, Jeong D. Moderation effects of perfectionism and meaning in life on depression. Pers Individ Dif. 2016;1(98):25–9.