Modeling the protective effects of Positive Emotions against Depression during early COVID-19 quarantine, with a structural equation model (SEM)


Published: Dec 30, 2021
Keywords:
Broaden and Build Theory COVID-19 depression life satisfaction positive emotions resilience SEM
Theodoros Kyriazos
https://orcid.org/0000-0002-4396-7057
Michalis Galanakis
https://orcid.org/0000-0002-9128-906X
Eirini Karakasidou
https://orcid.org/0000-0003-2946-8275
Anastassios Stalikas
https://orcid.org/0000-0001-6431-4277
Abstract
Amidst COVID-19 pandemic, focusing on effective coping strategies is crucial for building resilience to alleviate COVID-19 distress. The purpose of this study was to examine whether positive emotions and resilience mediate the relationship between COVID-19 depression and life satisfaction, controlling for the effect of creative activities and income on depression and non-parenthood on life satisfaction. The study was carried out during the early COVID-19 quarantine in a Greek sample of the general population (N = 759). The following measures were used: Depression, Anxiety, and Stress Scale, Short (DASS 9), the Scale of Positive and Negative Experience short (SPANE 8), the Satisfaction with Life Scale (SWLS), and the Brief Resilience Scale (BRS). Structural equation modeling (SEM) was used to analyze the data. The measurement model had a good fit with adequate model-based reliability, convergent, and discriminant validity.  Full measurement invariance to the strict level was established across gender for the measurement model. In parallel, the full SEM model had an equally good fit. Five hypotheses were supported, and one was rejected. Positive emotions and resilience mediated the relationship between COVID-19 depression and life satisfaction, i.e., positive emotions increased life satisfaction within the distressful COVID-19 context by building resilience with moderate effects. The effect of COVID-19 depression on life satisfaction before the mediation effect was -.57, p < .001 (32% explained variance on life satisfaction). After adding the mediation of positive emotions and resilience, the effect of COVID-19 depression on life satisfaction dropped to -.25, p < .001 (43% explained variance on life satisfaction).
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Ab Hamid, M. R., Sami, W., & Sidek, M. M. (2017). Discriminant validity assessment: Use of Fornell & Larcker criterion versus HTMT criterion. Journal of Physics: Conference Series, 890, 012163 https://doi.org/10. 1088/1742-6596/890/1/012163
American Psychological Association (2014). APA dictionary of statistics and research methods. Author.
Arrindell, W. A., Meeuwesen, L., & Huyse, F. J. (1991). The Satisfaction With Life Scale (SWLS): Psychometric properties in a non-psychiatric medical outpatients sample. Personality and individual differences, 12(2), 117-123. https://doi.org/10.1016/0191-8869(91)90094-R
Arslan, G. (2012). Psychological maltreatment predicts decreases in social wellbeing through resilience in college students: A conditional process approach of positive emotions. Current Psychology, https://doi.org/10. 1007/s12144-021-01583-0
Blais, M. R., Vallerand, R. J., Pelletier, L. G., & Briere, N. M. (1989). L’echelle de satisfaction de vie: Validation Canadienne- Francaise du ‘‘Satisfaction With Life Scale’’ [French-Canadian validation of the Satisfaction With Life Scale]. Canadian Journal of Behavioral Science, 21, 210–223.
Bonanno, G. A., Papa, A., & O'Neill, K. (2001). Loss and human resilience. Applied and preventive Psychology, 10(3), 193-206. https://doi.org/10.1016/S0962-1849(01)80014-7
Bonanno, G. A., Romero, S. A., & Klein, S. I. (2015). The Temporal Elements of Psychological Resilience: An Integrative Framework for the Study of Individuals, Families, and Communities. Psychological Inquiry, 26(2), 139-169. https://doi.org/10.1080/1047840x.2015.992677
Brown, T. A. (2015). Confirmatory factor analysis for applied research (2nd Ed). Guilford publications.
Bukhari, S.R., & Saba, F. (2017). Depression, anxiety and stress as negative predictors of life satisfaction in university students. Rawal Medical Journal, 42, 255-257. https://doi.org/10.21203/rs.3.rs-22880/v2
Chang, E.C., Chang, O.D., Li, M., Xi, Z., Liu, Y., Zhang, X., Wang, X., Li, Z., Zhang, M., Zhang, X., Chen, X. (2019): Positive emotions, hope, and life satisfaction in Chinese adults: a test of the broaden-and-build model in accounting for subjective well-being in Chinese college students, The Journal of Positive Psychology, https://doi.org/10.1080/17439760.2019.1579358
Chen, F. F. (2007). Sensitivity of goodness of fit indexes to lack of measurement invariance. Structural equation modeling: a multidisciplinary journal, 14(3), 464-504. https://doi.org/10.1080/10705510701301834
Cheung, G. W., & Rensvold, R. B. (2002). Evaluating goodness-of-fit indexes for testing measurement invariance. Structural equation modeling, 9(2), 233-255. https://doi.org/10.1207/S15328007SEM0902_5
Cohn, M. A., Fredrickson, B. L., Brown, S. L., Mikels, J. A., & Conway, A. (2008). Happiness unpacked: Positive emotions increase life satisfaction by building resilience. Emotion. 9, 3, 361–368. https://doi.org/10.1 037/a0015952.
Diener, E. D., Emmons, R. A., Larsen, R. J., & Griffin, S. (1985). The satisfaction with life scale. Journal of personality assessment, 49(1), 71-75. https://doi.org/10.1207/s15327752jpa4901_13
Diener, E., Lucas, R. E., & Scollon, C. N. (2006). Beyond the hedonic treadmill: Revising the adaptation theory of well-being. American Psychologist, 61, 305–314. https://doi.org/10.1037/0003-066x.61.4.305
Diener, E., Suh, E.M., Lucas, R.E., & Smith, H.E. (1999). Subjective well-being: Three decades of progress. Psychological Bulletin, 125, 276–302. https://doi.org/10.1037/0033-2909.125.2.276
Diener, E., Wirtz, D., Tov, W., Kim-Prieto, C., Choi, D. W., Oishi, S., & Biswas-Diener, R. (2010). New well-being measures: Short scales to assess flourishing and positive and negative feelings. Social indicators research, 97(2), 143-156. https://doi.org/10.1007/s11205-009-9493-y
DiGiovanni, C., Conley, J., Chiu, D., & Zaborski, J. (2004). Factors influencing compliance with quarantine in Toronto during the 2003 SARS outbreak. Biosecurity and bioterrorism: biodefense strategy, practice, and science, 2(4), 265-272. https://doi.org/10.1089/bsp.2004.2.265
Ekman, P. (1992). An argument for basic emotions. Cognition & emotion, 6(3-4), 169-200. https://doi.org/10.10 80/02699939208411068
Elgar, F. J., Waschbusch, D. A., Dadds, M. R., & Sigvaldason, N. (2007). Development and validation of a short form of the Alabama Parenting Questionnaire. Journal of Child and Family Studies, 16(2), 243-259. https://doi.org/10.1007/s10826-006-9082-5
Folkman, S. (1997). Positive psychological states and coping with severe stress. Social science & medicine, 45(8), 1207-1221. https://doi.org/10.1016/s0277-9536(97)00040-3
Folkman, S. (2008). The case for positive emotions in the stress process. Anxiety, Stress and Coping, 21, 3–14. https://doi.org/10.1080/10615800701740457
Fornell, C., & Larcker, D. F. (1981). Structural equation models with unobservable variables and measurement error: Algebra and statistics. https://doi.org/10.1177/002224378101800313
Fredrickson, B. L. (1998). Cultivated emotions: Parental socialization of positive emotions and self-conscious emotions. Psychological Inquiry, 9(4), 279-281. https://doi.org/10.1207/s15327965pli0904_4
Fredrickson, B. L. (2000). Extracting meaning from past affective experiences: The importance of peaks, ends, and specific emotions. Cognition and Emotion, 14, 577-606. https://doi.org/10.1080/026999300402808
Fredrickson, B. L. (2001). The role of positive emotions in positive psychology: The broaden-and-build theory of positive emotions. American psychologist, 56(3), 218. https://doi.org/10.1037/0003-066X.56.3.218
Fredrickson, B. L. (2002). Positive emotions. In C. R. Snyder & S. J. Lopez (Eds), Handbook of positive psychology. Oxford University Press.
Fredrickson, B. L. (2013). Positive emotions broaden and build. In Advances in experimental social psychology (Vol. 47, pp. 1-53). Academic Press.
Fredrickson, B. L., & Branigan, C. (2005). Positive emotions broaden the scope of attention and thought‐action repertoires. Cognition & emotion, 19(3), 313-332. https://doi.org/10.1080/02699930441000238
Fredrickson, B. L., & Levenson, R. W. (1998). Positive emotions speed recovery from the cardiovascular sequelae of negative emotions. Cognition & emotion, 12(2), 191-220. https://doi.org/10.1080/026999398379718
Fredrickson, B. L., Cohn, M. A., Coffey, K. A., Pek, J., & Finkel, S. M. (2008). Open hearts build lives: positive emotions, induced through loving-kindness meditation, build consequential personal resources. Journal of personality and social psychology, 95(5), 1045. https://doi.org/10.1037/a0013262
Fredrickson, B. L., Mancuso, R. A., Branigan, C., & Tugade, M. M. (2000). The undoing effect of positive emotions. Motivation and emotion, 24(4), 237-258. https://doi.org/10.1023/A:1010796329158
Fredrickson, B. L., Tugade, M. M., Waugh, C. E., & Larkin, G. R. (2003). What good are positive emotions in crisis? A prospective study of resilience and emotions following the terrorist attacks on the United States on September 11th, 2001. Journal of personality and social psychology, 84(2), 365. https://doi.org/10.1037/ 0022-3514.84.2.365
García-Dantas, A., Justo-Alonso, A., Rio-Casanova, L. D., González-Vázquez, A. I., & Sánchez-Martín, M. (2020). Immediate Psychological Responses During the Early Stage of the Coronavirus Pandemic (COVID-19) in the General Population in Spain: ISAMEC19 STUDY. Available at SSRN 3576927. https://doi.org/10.2139 /ssrn.3576927
Gigantesco, A., Fagnani, C., Toccaceli, V., Stazi, M.A., Lucidi, F., Violani, C. and Picardi, A, (2019). The Relationship Between Satisfaction With Life and Depression Symptoms by Gender. Frontiers in Psychiatry, 10, 419. https://doi.org/10.3389/fpsyt.2019.00419
Giotsa, A. Kyriazos, T.A., Mitrogiorgou, E. (2018). Parental Acceptance-Rejection and Interpersonal Anxiety in Young Adults. Hellenic Journal of Psychology, 15, 138-150.
Hancock, G. R., & Freeman, M. J. (2001). Power and sample size for the root mean square error of approximation test of not close fit in structural equation modeling. Educational and Psychological Measurement, 61(5), 741-758. https://doi.org/10.1177/00131640121971491
Hefferon, K., & Boniwell, I. (2011). Positive Psychology: Theory, Research and Applications. McGraw-Hill Education.
Henseler, J., Ringle, C. M., & Sarstedt, M. (2015). A new criterion for assessing discriminant validity in variance-based structural equation modeling. Journal of the academy of marketing science, 43(1), 115-135. https://doi.org/10.1007/s11747-014-0403-8
Holmes, E. A., O'Connor, R. C., Perry, V. H., Tracey, I., Wessely, S., Arseneault, L., ... & Ford, T. (2020). Multidisciplinary research priorities for the COVID-19 pandemic: a call for action for mental health science. The Lancet Psychiatry. https://doi.org/10.1016/S2215-0366(20)30168-1
Hu, L. T., & Bentler, P. M. (1999). Cutoff criteria for fit indexes in covariance structure analysis: Conventional criteria versus new alternatives. Structural equation modeling: a multidisciplinary journal, 6(1), 1-55.
Hu, T., Zhang, D., & Wang, J. (2015). A meta-analysis of the trait resilience and mental health. Personality and Individual Differences, 76, 18–27. https://doi.org/10.1080/10705519909540118
Hyland, P., Shevlin, M., McBride, O., Murphy, J., Karatzias, T., Bentall, R.P., Martinez, A., Vallieres, F. (2020). Anxiety and depression in the Republic of Ireland during the COVID-19 pandemic. Acta Psychiatrica Scandinavica, 142, 249–256. https://doi.org/10.1111/acps.13219
Isen, A. M. (2004). Some Perspectives on Positive Feelings and Emotions. Feelings and Emotions, 263–281. https://doi.org/10.1017/cbo9780511806582.016
Kapoor, H., & Kaufman, J. C. (2020). Meaning-making through creativity during COVID-19. Frontiers in Psychology, 11, 595990. https://doi.org/10.3389/fpsyg.2020.595990
Kar, N., Kar, B., & Kar, S. (2021). Stress and coping during COVID-19 pandemic: Result of an online survey. Psychiatry research, 295, 113598. https://doi.org/10.1016/j.psychres.2020.113598
Kline, R. B. (2011). Principles and practice of structural equation modeling. Methodology in the social sciences (3rd ed.). Guilford Press
Kline, R. B. (2016). Principles and Practice of Structural Equation Modeling: Methodology in the social sciences (4th ed.). Guilford Press.
Kline, R. B. (2020). Becoming a Behavioral Science Researcher (2nd ed.). Guilford Press.
Korkmaz, S., Goksuluk, D., & Zararsiz, G. (2014). MVN: An R package for assessing multivariate normality. The R Journal, 6(2), 151-162.
Kyriazos, T. (2017a). Reliability of psychometric instruments. In M, Galanakis, C, Pezirkianidis, A. Stalikas (Eds), Basic aspects of psychometrics, (p. 85-126). Topos.
Kyriazos, T. (2017b). Validity of psychometric instruments. In M, Galanakis, C, Pezirkianidis, A. Stalikas (Eds), Basic aspects of psychometrics, (p. 127-184). Topos.
Kyriazos, T. (2017c). Structural Equation Models. In M, Galanakis, C, Pezirkianidis, A. Stalikas (Eds), Basic aspects of psychometrics, (p. 293-235). Topos.
Kyriazos, T. (2017d). Factor Analysis. In M, Galanakis, C, Pezirkianidis, A. Stalikas (Eds), Basic aspects of psychometrics, (p. 223-291). Topos.
Kyriazos, T. A. (2018). Applied Psychometrics: The Application of CFA to Multitrait-Multimethod Matrices (CFA-MTMM). Psychology, 9, 2625-2648. https://doi.org/10.4236/psych.2018.912150
Kyriazos, T. A. (2019). Applied Psychometrics: The Modeling Possibilities of Multilevel Confirmatory Factor Analysis (MLV CFA). Psychology, 10, 777-798. https://doi.org/10.4236/psych.2019.106051
Kyriazos, T. A., & Stalikas, A. (2018). Positive Parenting or Positive Psychology Parenting? Towards a Conceptual Framework of Positive Psychology Parenting. Psychology, 9, 1761-1788. https://doi.org/10.4236/ psych.2018.97104
Kyriazos, T. A., & Stalikas, A. (2019a). Alabama Parenting Questionnaire—Short Form (APQ-9): Evidencing Construct Validity with Factor Analysis, CFA MTMM and Measurement Invariance in a Greek Sample. Psychology, 10, 1790-1817. https://doi.org/10.4236/psych.2019.1012117
Kyriazos, T. A., & Stalikas, A. (2019b). Nicomachus-Positive Parenting (NPP): Development and Initial Validation of a Parenting Questionnaire within the Positive Psychology Framework. Psychology, 10, 2115-2165. https://doi.org/10.4236/psych.2019.1015136
Kyriazos, T. A., Stalikas, A., Prassa, K., & Yotsidi, V. (2018a). Can the Depression Anxiety Stress Scales Short be shorter? Factor structure and measurement invariance of DASS-21 and DASS-9 in a Greek, non-clinical sample. Psychology, 9(5), 1095-1127. https://doi.org/10.4236/psych.2018.95069
Kyriazos, T. A., Stalikas, A., Prassa, K., & Yotsidi, V. (2018b). A 3-Faced Construct Validation and a Bifactor Subjective Well-Being Model Using the Scale of Positive and Negative Experience, Greek Version. Psychology, 9, 1143-1175. https://doi.org/10.4236/psych.2018.95071
Kyriazos, T. A., Stalikas, A., Prassa, K., Galanakis, M., Yotsidi, V. & Lakioti, A. (2018). Psychometric Evidence of the Brief Resilience Scale (BRS) and Modeling Distinctiveness of Resilience from Depression and Stress. Psychology, 9, 1828-1857. https://doi.org/10.4236/psych.2018.97107
Kyriazos, T. A., Stalikas, A., Prassa, K., Yotsidi, V., Galanakis, M., & Pezirkianidis, C. (2018). Validation of the Flourishing Scale (FS), Greek Version and Evaluation of Two Well-Being Models. Psychology, 9, 1789-1813. https://doi.org/10.4236/psych.2018.97105
Kyriazos, T, Galanakis, M., Karakasidou, E., Stalikas, A. (2021a). Well-Being Implications of the COVID-19 Quarantine Using Machine Learning: Are Creative Activities a Ubiquitous Classifier? Personality and Individual Differences, 181, 110980. https://doi.org/10.1016/j.paid.2021.110980
Kyriazos, T., Galanakis, M., Katerelos, I., & Stalikas, A. (2021). Does the Pollyannaish View on Life Hold during Early COVID-19 Quarantine? Modeling the Effects of Positive Emotions, Hope, Optimism and Life Meaning on Life Satisfaction. Open Journal of Social Sciences, 9, 315-338. https://doi.org/10.423 6/jss.2021.910023
Lazarus, R. S. (1991). Progress on a cognitive-motivational-relational theory of emotion. American psychologist, 46(8), 819. https://doi.org/10.1037/0003-066x.46.8.819
Leung, D.Y.P., Wong, E.M.L., Chan, S.S.E., Lam, T.H. (in press). Emotional distress mediates the relationship between cognitive failures, dysfunctional coping and life satisfaction in older people living in sheltered housing: A structural equation modelling approach. https://doi.org/10.1002/gps.5007
Levenson, R. W., Carstensen, L. L., & Gottman, J. M. (1994). Influence of age and gender on affect, physiology, and their interrelations: A study of long-term marriages. Journal of personality and social psychology, 67(1), 56. https://doi.org/10.1037/0022-3514.67.1.56
Lovibond, S. H., & Lovibond, P. F. (1995). Manual for the Depression Anxiety StressScales. Psychology Foundation.
MacCallum, R. C., Browne, M. W., & Sugawara, H. M. (1996). Power analysis and determination of sample size for covariance structure modeling. Psychological methods, 1(2), 130. https://doi.org/10.1037/1082-989X.1.2.130
Mazza, C., Ricci, E., Biondi, S., Colasanti, M., Ferracuti, S., Napoli, C., & Roma, P. (2020). A nationwide survey of psychological distress among italian people during the COVID-19 pandemic: Immediate psychological responses and associated factors. International Journal of Environmental Research and Public Health, 17(9), 3165. https://doi.org/10.3390/ijerph17093165
McDonald, R. P. (1999). Test Theory: A Unified Treatment. Erlbaum.
Mercier, M., Vinchon, F., Pichot, N., Bonetto, E., Bonnardel, N., Girandola, F., & Lubart, T. (2021). COVID-19: A Boon or a Bane for Creativity? Frontiers in psychology, 11, 3916. https://doi.org/10.3389 /fpsyg.2020.601150
Orgilés, M., Morales, A., Delvecchio, E., Francisco, R., Mazzeschi, C., Pedro, M., & Espada, J. P. (2021). Coping behaviors and psychological disturbances in youth affected by the COVID-19 health crisis. Frontiers in Psychology, 12, 845. https://doi.org/10.3389/fpsyg.2021.692133
Osborne, J. W., & Costello, A. B. (2004). Sample size and subject to item ratio in principal components analysis. Practical Assessment, Research, and Evaluation, 9(1), 11. https://doi.org/10.7275/ktzq-jq66
Pavot, W. (2018). The Cornerstone of Research on Subjective Well-Being: Valid Assessment Methodology. In E. Diener, S. Oishi, & L. Tay (Eds.), Handbook of Well-Being (pp. 1-11). DEF Publishers.
Pavot, W., & Diener, E. (2008). The satisfaction with life scale and the emerging construct of life satisfaction. The Journal of Positive Psychology, 3, 137–152. http://dx.doi.org/10.1080/17439760701756946
R Development Core Team (2020). R: A Language and Environment for Statistical Computing. Vienna: R Foundation for Statistical Computing
Rahim, M. A., & Magner, N. R. (1995). Confirmatory factor analysis of the styles of handling interpersonal conflict: First-order factor model and its invariance across groups. Journal of Applied Psychology, 80, 122–132. https://doi.org/10.1037/0021-9010.80.1.122
Schimmack, U., Oishi, S., Furr, R. M., & Funder, D. C. (2004). Personality and life satisfaction: A facet-level analysis. Personality and Social Psychology Bulletin, 30, 8, 1062–1075. https://doi.org/10.1177/014 6167204264292
Shadish, W. R., Cook, T. D. & Campbell, D. T. (2001). Experimental and quasiexperimental designs for generalized causal inference. Houghton Mifflin.
Shi, M., Wang, X., Bian, Y., & Wang, L. (2015). The mediating role of resilience in the relationship between stress and life satisfaction among Chinese medical students: A cross-sectional study. BMC Medical Education, 15(1), 16. https://doi.org/10.1186/s12909-015-0297-2
Siedlecki, K.L., Tucker-Drob, E.M., Oishi, S. and Salthouse, T.A. (2008). Life satisfaction across adulthood: different determinants at different ages? The Journal of Positive Psychology, 3, 3, 153–164. https://doi.org/10.1080/17439760701834602
Smith, B. W., Dalen, J., Wiggins, K., Tooley, E., Christopher, P., & Bernard, J. (2008). The brief resilience scale: assessing the ability to bounce back. International journal of behavioral medicine, 15(3), 194-200. https://doi.org/10.1080/17439760.2010.482186
Stalikas, A. & Kyriazos, T. (2019). Research Methods and Statistics Using R. Topos.
Stalikas, A., Kyriazos, T. A., Yotsidi, V., & Prassa, K. (2018). Using Bifactor EFA, Bifactor CFA and Exploratory Structural Equation Modeling to Validate Factor Structure of the Meaning in Life Questionnaire, Greek Version. Psychology, 9, 348-371. https://doi.org/10.4236/psych.2018.93022
Tabachnick, B. G., & Fidell, L. S. (2013). Using multivariate statistics: International edition. Pearson2012.
Tang, M., Hofreiter, S., Reiter-Palmon, R., Bai, X., & Murugavel, V. (2021). Creativity as a Means to Well-Being in Times of COVID-19 Pandemic: Results of a Cross-Cultural Study. Frontiers in Psychology, 12, Article e601389. https://doi.org/10.3389/fpsyg.2021.601389
Taylor, M. R., Agho, K. E., Stevens, G. J., & Raphael, B. (2008). Factors influencing psychological distress during a disease epidemic: data from Australia's first outbreak of equine influenza. BMC public health, 8(1), 347. https://doi.org/10.1186/1471-2458-8-347
Taylor, S. E., Kemeny, M. E., Reed, G. M., Bower, J. E., & Gruenewald, T. L. (2000). Psychological resources, positive illusions, and health. American psychologist, 55(1), 99. https://doi.org/10.1037//0003-066x.55.1.99
Tian, F., Li, H., Tian, S., Yang, J., Shao, J., & Tian, C. (2020). Psychological symptoms of ordinary Chinese citizens based on SCL-90 during the level I emergency response to COVID-19. Psychiatry Research, 112992. https://doi.org/10.1016/j.psychres.2020.112992
Tracy, C. S., Rea, E., & Upshur, R. E. (2009). Public perceptions of quarantine: community-based telephone survey following an infectious disease outbreak. BMC Public Health, 9(1), 470. https://doi.org/10.1186/1471-2458-9-470
Trigueros, R., Aguilar-Parra, J.M., Cangas, A.J., Bermejo, R., Ferrandiz, C. & López-Liria, R. (2019). Influence of Emotional Intelligence, Motivation and Resilience on Academic Performance and the Adoption of Healthy Lifestyle Habits among Adolescents. International Journal of Environmental Research and Public Health, 16, 2810. https://doi.org10.3390/ijerph16162810.
Tugade, M. M., & Fredrickson, B. L. (2004). Resilient individuals use positive emotions to bounce back from negative emotional experiences. Journal of personality and social psychology, 86(2), 320. https://doi.org/10.1037/0022-3514.86.2.320
Ullman, J. B. (2013). Structural Equation Modeling. In B. Tabachnick, & L.
Fidell (Eds.), Using Multivariate Statistics (pp. 681-785). Pearson Education.
Van Bortel, T., Basnayake, A., Wurie, F., Jambai, M., Koroma, A., Muana, A., Hann, K., Eaton, J., Martin, S., Nellums, L (2016). Psychosocial effects of an Ebola outbreak at individual, community and international levels. Bulletin of the World Health Organization, 94(3), 210. https://doi.org/10.2471/BLT.15.158543
Wadlinger, H. A., & Isaacowitz, D. M. (2006). Positive mood broadens visual attention to positive stimuli. Motivation and emotion, 30(1), 87-99. https://doi.org/10.1007/s11031-006-9021-1
Wang, C., Pan, R., Wan, X., Tan, Y., Xu, L., Ho, C.S., Ho, R.C. (2020). Immediate psychological responses and associated factors during the initial stage of the 2019 Coronavirus disease (COVID-19) epidemic among the general population in China. Int. J. Environ. Res. Public Health, 17, 1729. https://doi.org/ 10.3390/ijerph17051729
Werts, C. E., Linn, R. L., & Jöreskog, K. G. (1974). Intraclass reliability estimates: Testing structural assumptions. Educational and Psychological measurement, 34(1), 25-33. https://doi.org/10.1177/001316447403400104
WHO. (2020, January 29). Advice on the use of masks in the community, during home care and in health care settings in the context of the novel coronavirus (2019-nCoV). https://apps.who.int/iris/handle /10665/330987.
Yang, F. (2021). Coping strategies, cyberbullying behaviors, and depression among Chinese netizens during the COVID-19 pandemic: a web-based nationwide survey. Journal of affective disorders, 281, 138-144.
Yusoff, M. S. B. (2013). Psychometric Properties of the Depression Anxiety Stress Scale in a Sample of Medical Degree Applicants. International Medical Journal, 20, 295-300.
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