Explain the purpose psychological concepts that were addressed in the research. Predict human behavior using a theory or psychological concept.

Please look at the references that are listed below and answer these questions.

As a reminder, the assignment instructions indicate that you are to do the following:
·      Explain the purpose psychological concepts that were addressed in the research. 
Predict human behavior using a theory or psychological concept.
·      Are there any patterns, themes, or trends that you were able to trace in your research? 
·      Describe the concepts related to the theory that will be the basis for your research. 
·      Discuss the value and the limitations of the theoretical concepts. 

References
Fu, R., & Noguchi, H. (2016). Does marriage make us healthier? Inter-country comparative evidence from China, Japan, and Korea. PLoS One, 11(2), e0148990.
https://doi.org/10.1371/journal.pone.0148990
Kiecolt-Glaser, J. K., & Newton, T. L. (2001). Marriage and health: his and hers. Psychological bulletin, 127(4), 472. https://doi.org/10.1037//0033-2909.127.4.472
Miller, R. B., Hollist, C. S., Olsen, J., & Law, D. (2013). Marital quality and health over 20 years: A growth curve analysis. Journal of Marriage and Family, 75(3), 667-680.
doi:http://dx.doi.org.library.capella.edu/10.1111/jomf.12025
Ola, M., & Mathur, R. (2016). Is marriage essential for good physical and mental health of women?. Indian Journal of Health and Wellbeing, 7(3), 359.
Lawrence, E. M., Rogers, R. G., Zajacova, A., & Wadsworth, T. (2019). Marital happiness, marital status, health, and longevity. Journal of Happiness Studies, 20(5), 1539-1561. https://doi.org/10.1007/s10902-018-0009-9
Slatcher, R. B., & Schoebi, D. (2017). Protective processes underlying the links between marital quality and physical health. Current Opinion in Psychology, 13, 148-152. https://doi.org/10.1016/j.copsyc.2016.09.002