Development of the Infidelity Tendency Comprehensive (ITCh) Scale

Authors

  • Raven Kyle Gonzaga UM Digos College, Digos City, Philippines
  • Queen Mae Aguirre UM Digos College, Digos City, Philippines
  • Novielen Jean Dacay UM Digos College, Digos City, Philippines
  • Cristine Alegado UM Digos College, Digos City, Philippines
  • Mark Luiz Demanawa UM Digos College, Digos City, Philippines
  • Junna Predigosa UM Digos College, Digos City, Philippines

DOI:

https://doi.org/10.54536/ajhp.v3i1.4345

Keywords:

Exploratory Factor Analysis, Infidelity Tendency Scale, Filipino Young Adults

Abstract

Infidelity is known to influence relationship dynamics negatively. However, it remains a societal issue in the Philippines. The purpose of this study was to develop an instrument that measures the likelihood of Filipino young adults to commit infidelity. The Infidelity Tendency Comprehensive (ITCh) Scale aims to generate sufficient data to aid the rising number of individuals committing infidelity. A sample of 500 Filipino young adults aged 18 to 25 was chosen using simple random sampling to ensure a representative population. The initial 80-item scale was refined through a pilot test with 50 respondents, resulting in a 45-item version. Principal Axis Factoring (PAF) was employed to identify the underlying factors, supported by the Kaiser-Meyer-Olkin (KMO) measure (0.954) and Barlette’s Test of Sphericity (p<0.05). Factor analysis revealed five key factors: sexual arousal, insecurity, extroversion, relationship dissatisfaction, and indifference in relationships. The final scale retained 43 items after removing them with low factor loadings. Reliability testing showed a high Cronbach’s alpha of 0. 956, and discriminant validity was confirmed, indicating the scale’s accuracy and relevance. The ITCh scale is a reliable and valid instrument that provides a basis for further research and interventions to build healthier relationships.

References

Altgelt, E. E., & Meltzer, A. L. (2019). Mate-retention behaviors mediate the association between spouses’ attachment insecurity and subsequent partner satisfaction. Personality and Individual Differences, 151, 109534. https://doi.org/10.1016/j.paid.2019.109534

Aron, A., & Aron, E. (1986). Love and the expansion of self: Understanding attraction and satisfaction. Hemisphere Publishing Corp/Harper & Row Publishers. https://psycnet.apa.org/record/1986-98255-000

Aron, A., Lewandowski, G. Jr., Mashek, D., & Aron, E. N. (2013). The self-expansion model of motivation and cognition in close relationships. In J. M. D. Clark & L. A. M. Feeney (Eds.), The Oxford handbook of close relationships (pp. 90-115). Oxford University Press. https://www.researchgate.net/publication/284143380_The_self-expansion_model_of_motivation_and_cognition_in_close_relationships

Avelino, E. J. G. (2024). Infidelity and stress in the workplace among selected call center agents in Quezon City. Academia. https://www.academia.edu/120235525/Infidelity_and_Stress_in_the_Workplace_among_selected_Call_Center_Agents_in_Quezon_City

Bartlett, S. (1951). The effect of standardization on a Χ² approximation in factor analysis. Biometrika, 38(3), 337–344.

Belu, C. F., & O’Sullivan, L. F. (2024). Predictors of infidelity among couples. The Journal of Sexual Medicine, 21(4), 270–272. https://doi.org/10.1093/jsxmed/qdad165

Blunch, N. J. (2008). Introduction to structural equation modeling using SPSS and AMOS. SAGE Publications. https://doi.org/10.4135/9781446249345

Browne, H. (2024). Insecurities in relationships: Everything you need to know. Simply Psychology. https://www.simplypsychology.org/insecurities-in-a-relationship.html

Chakravarti, I., Laha, G., & Roy, J. (1967). Handbook of methods of applied statistics. Biometrika, 1, 392–394.

Cherry, K. (2022, March 27). Extroversion in personality. Verywell Mind. https://www.verywellmind.com/what-is-extroversion-2795994

Cokluk, O., & Kocak, D. (2016, March 30). Using Horn’s parallel analysis method in exploratory factor analysis for determining the number of factors. Education Science: Theory and Practice, 16(2), 537–551. https://doi.org/10.12738/estp.2016.2.0328

Extroversion. (2024). In Merriam-Webster Dictionary. https://www.merriam-webster.com/dictionary/extroversion

Fein, E. C., Gilmour, J., Machin, T., & Hendry, L. (2022). Section 8.4: EFA determining the number of factors. Retrieved from https://usq.pressbooks.pub/statisticsforresearchstudents/chapter/efa-assumptions/

Garrido, L. E., Abad, F. J., & Ponsoda, V. (2011). Performance of Velicer’s minimum average partial factor retention method with categorical variables. Educational and Psychological Measurement, 71(3), 551–570. https://doi.org/10.1177/0013164410389489

Gaskin, J., & Happell, B. (2014). Exploratory factor analysis: A review of recent evidence, an assessment of current practice, and recommendations for future use. International Journal of Nursing Studies, 51(3), 511–521. https://doi.org/10.1016/j.ijnurstu.2013.10.005

Ghorbani, H. (2019). Mahalanobis distance and its application for detecting multivariate outliers. Facta Universitatis Series Mathematics and Informatics, 32(2), 583–595. https://doi.org/10.22190/fumi1903583g

Gono, E. R., Jr. (2024). Model of cheating in a romantic relationship. European Journal of Social Sciences Studies, 9(5). https://doi.org/10.46827/ejsss.v9i5.1650

Hayton, J. C., Allen, D., & Scarpello, V. (2004, April). Factor retention decisions in exploratory factor analysis: A tutorial on parallel analysis. Organizational Research Methods, 7(2), 191–205. https://doi.org/10.1177/1094428104263675

Hedrih, V. (2024). The science of infidelity: The key psychological and contextual factors that predict cheating. PsyPost-PsychologyNews. https://www.psypost.org/the-science-of-infidelity-the-key-psychological-and-contextual-factors-that-predict-cheating/

Horn, J. L. (1965). A rationale and test for the number of factors in factor analysis. Psychometrika, 30(2), 179–185. https://doi.org/10.1007/BF02289447

Howard, A. (2022). What does indifference in a relationship look like? Psych Central. https://psychcentral.com/blog/how-indifference-can-affect-a-relationship#what-is-indifference

Indifferent. (2025). In Merriam-Webster Dictionary. https://www.merriam-webster.com/dictionary/indifferent

Kaiser, H. F. (1974). An index of factorial simplicity. Psychometrika, 39(1), 31–36. https://doi.org/10.1007/BF02291575

Kimber, A. (2024). Infidelity versus adultery — Is there a difference? Medium. https://medium.com/the-infidelitist/infidelity-versus-adultery-is-there-a-difference-fbea3908611f

Ledesma, R. D., Valero-Mora, P. M., & Macbeth, G. (2015, June). The scree test and the number of factors: A dynamic graphics approach. The Spanish Journal of Psychology, 18, E45. https://doi.org/10.1017/sjp.2015.13

Lee, A. (2015, March 25). Have a break, have an affair? Manila Standard. https://manilastandard.net/?p=167613

Lewandowski, G., & Ackerman, R. (2010). Something’s missing: Need fulfillment and self-expansion as predictors of susceptibility to infidelity. The Journal of Social Psychology, 146(4), 389–403. https://doi.org/10.3200/SOCP.146.4.389-403

Lișman, C. G., & Holman, A. C. (2021). Cheating under the circumstances in marital relationships: The development and examination of the propensity towards infidelity scale. Social Sciences, 10(10), 392. https://doi.org/10.3390/socsci10100392

McMillan, J. H. (2007). Classroom assessment: Principles and practice for effective standards-based instruction (4th ed.). Pearson.

MSEd, K. C. (2023). How the arousal theory of motivation works. Verywell Mind. https://www.verywellmind.com/the-arousal-theory-of-motivation-2795380

Norman, C. (1988, March). The eigenvalues-greater-than-one rule and the reliability of components. Psychological Bulletin, 103(2), 276–279. https://doi.org/10.1037/0033-2909.103.2.276

Osborne, J., Costello, A., & Kellow, J. (2008). Best practices in exploratory factor analysis. In J. Osborne (Ed.), Best practices in quantitative methods (pp. 86–99). SAGE Publications.

Osborne, J. (2015). What is rotating in exploratory factor analysis? Assessment, 20(1), 1–8.

Pillai, N. V., & Rjumohan, A. (2020). Reliability, validity, and uni-dimensionality: A primer. MPRA Paper. https://ideas.repec.org/p/pra/mprapa/101714.html

Professional, C. C. M. (2024). Sexual response cycle. Cleveland Clinic. https://my.clevelandclinic.org/health/articles/9119-sexual-response-cycle

Rokach, A., & Chan, S. H. (2023). Love and infidelity: Causes and consequences. International Journal of Environmental Research and Public Health, 20(5), 3904. https://doi.org/10.3390/ijerph20053904

Siguan, A. N. D. R. E. W., Ong, M. F. T., & Cañete, S. I. M. (2021). The impact of infidelity on Filipino family dynamics and young adult Filipino’s self-concept. MALIM: Jurnal Pe Pengajian Umum Asia Tenggara, 22(2021), 14–37.

Taherdoost, H., Sahibuddin, S., & Jalaliyoon, N. (2014). Exploratory factor analysis: Concepts and theory. HAL. https://hal.science/hal-02557344v1

Tavakol, M., & Wetzel, A. (2020). Factor analysis: A means for theory and instrument development in support of construct validity. International Journal of Medical Education, 11, 245–247. https://doi.org/10.5116/ijme.5f96.0f4a

Travers, M. (2024, June 29). A psychologist reveals 6 signs a marriage may end in divorce. Forbes. https://www.forbes.com/sites/traversmark/2024/06/29/a-psychologist-reveals-the-6-signs-a-marriage-will-end-in-divorce/

Wanjiru, V., Ireri, N., & Menecha, J. (2020). An investigation of the factors contributing to infidelity among married couples in selected mainstream churches in Kikuyu Constituency, Kiambu County, Kenya. Journal of Sociology, Psychology & Religious Studies, 2(2), 1–8.

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Published

2025-06-21

How to Cite

Gonzaga, R. K., Aguirre, Q. M., Dacay, N. J., Alegado, C., Demanawa, M. L., & Predigosa, J. (2025). Development of the Infidelity Tendency Comprehensive (ITCh) Scale. American Journal of Human Psychology, 3(1), 77–85. https://doi.org/10.54536/ajhp.v3i1.4345