Self-esteem (SE) is one of the most widely studied constructs within the social sciences. While a variety of instruments and methods have been developed to assess SE, the Rosenberg Self-Esteem Scale (RSES) remains the most extensively used scale worldwide to evaluate SE. Although the RSES has been validated and utilized in numerous settings around the world, and despite its brevity and general ease of administration, it has only been used in a remarkably few settings in Africa. Moreover, to date, it has not been used to explore SE in any country within Northeast Africa. The present study, focusing on Eritrea, a young, developing country, examines the psychometric properties of a translated version of the RSES. The translated RSES was administered to a sample of young Eritreans. Results from the self-report questionnaires show that the translated RSES has a single factor structure, as well as demonstrates high internal consistency and reliability. Additionally, findings suggest that Eritrean youth generally have high SE, while one-way ANOVA results reveal a statistically significant difference in SE between male and female respondents. Specifically, male respondents had higher scores, and higher SE compared to female respondents. The translated RSES is a reliable and valid scale that is suitable and appropriate for use with young Eritreans.
References
[1]
Abell, S. C., & Richards, M. J. (1996). The Relationship between Body Shape Satisfaction and Self-Esteem: An Investigation of Gender and Class Differences. Journal of Youth and Adolescence, 25, 691-703. https://doi.org/10.1007/BF01537361
[2]
AfDB (2016). African Economic Outlook: Sustainable Cities and Structural Transformation. Abidjan: African Development Bank Group. http://www.africaneconomicoutlook.org/sites/default/files/2016-05/eBook_AEO2016.pdf
[3]
Allen, M. J., & Yen, W. M. (2002). Introduction to Measurement Theory. Prospect Heights, IL: Waveland Press.
[4]
Ang, R. P., Neubronner, M., Oh, S., & Leong, V. (2006). Dimensionality of Rosenberg’s Self Esteem Scale among Normal-Technical Stream Students in Singapore. Current Psychology, 25, 120-131. https://doi.org/10.1007/s12144-006-1007-3
[5]
Aryana, M. (2010). Relationship between Self-Esteem and Academic Achievement amongst Pre-University Students. Journal of Applied Sciences, 10, 2474-2477. https://doi.org/10.3923/jas.2010.2474.2477
[6]
Bagley, C., Bolitho, F., & Bertrand, L. (1997). Norms and Construct Validity of the Rosenberg Self-Esteem Scale in Canadian High School Populations: Implications for Counselling. Canadian Journal of Counselling, 31, 82-92.
[7]
Baumeister, R. F., Campbell, J. D., Krueger, J. I., & Vohs, K. D. (2003). Does High Self-Esteem Cause Better Performance, Interpersonal Success, Happiness, or Healthier Lifestyles? Psychological Science in the Public Interest, 4, 1-44. https://doi.org/10.1111/1529-1006.01431
[8]
Berry, J. W. (1989). Introduction to Methodology. In H. Triandis, & J. W. Berry (Eds.), Handbook of Cross-Cultural Psychology (Volume 2, pp. 1-28). Boston, MA: Allyn & Bacon.
[9]
Blascovich, J., & Tomaka, J. (1993). Measures of Self-Esteem. In J. P. Robinson, P. R. Shaver, & L. S. Wrightsman (Eds.), Measures of Personality and Social Psychological Attitudes (3rd ed., pp. 115-160). Ann Arbor: Institute for Social Research. https://doi.org/10.1016/B978-0-12-590241-0.50008-3
[10]
Bond, M. H., & Cheung, T. (1983). College Students’ Spontaneous Self-Concept: The Effect of Culture among Respondents in Hong Kong, Japan, and the United States. Journal of Cross-Cultural Psychology, 14, 153-171. https://doi.org/10.1177/0022002183014002002
[11]
Brand, M. (2004). Collectivistic Versus Individualistic Cultures: A Comparison of American, Australian and Chinese Music Education Students’ Self-Esteem. Music Education Research, 6, 57-66. https://doi.org/10.1080/1461380032000182830
[12]
Brechan, I., & Kvalem, I. L. (2015). Relationship between Body Dissatisfaction and Disordered Eating: Mediating Role of Self-Esteem and Depression. Eating Behaviors, 17, 49-58. https://doi.org/10.1016/j.eatbeh.2014.12.008
[13]
Brislin, R. W. (1986). The Wording and Translation of Research Instruments. In W. Lonner, & J. Berry (Eds.), Field Methods in Cross-Cultural Research (pp. 137-164). Beverly Hills, CA: Sage.
[14]
Brown, J. D. (2007). The Self. New York: Psychology Press.
[15]
Button, E. J., Loan, P., Davies, J., & Sonuga-Barke, E. J. S. (1997). Self-Esteem, Eating Problems, and Psychological Well-Being in a Cohort of Schoolgirls Aged 15-16: A Questionnaire and Interview Study. International Journal of Eating Disorders, 21, 39-47. https://doi.org/10.1002/(SICI)1098-108X(199701)21:1<39::AID-EAT5>3.0.CO;2-4
[16]
Campbell, J. D., Trapnell, P. D., Heine, S. J., Katz, I., Lavallee, & Lehman, D. R. (1996). Self Concept Clarity: Measurement, Personality Correlates and Cultural Boundaries. Journal of Personality and Social Psychology, 70, 141-156. https://doi.org/10.1037/0022-3514.70.1.141
[17]
Child, D. (1990). The Essentials of Factor Analysis (2nd ed.). London: Cassel Educational Limited.
[18]
Çivitçi, N., & Çivitçi, A. (2009). Self-Esteem as Mediator and Moderator of the Relationship between Loneliness and Life Satisfaction in Adolescents. Personality and Individual Differences, 47, 954-958. https://doi.org/10.1016/j.paid.2009.07.022
[19]
Clark, L. A., & Watson, D. (1995). Constructing Validity: Basic Issues in Objective Scale Development. Psychological Assessment, 7, 309-319. https://doi.org/10.1037/1040-3590.7.3.309
[20]
Cohen, R. J., & Swerdlik, M. E. (2005). Psychological Testing and Assessment: An Introduction to Tests and Measurement (6th ed.). New York: McGraw-Hill.
[21]
Comrey, A. L., & Lee, H. B. (1992). A First Course in Factor Analysis (2nd ed.). New York: Lawrence Erlbaum Associates, Inc.
[22]
Connelly, L. M. (2011). Cronbach’s Alpha. Medsurg Nursing, 20, 44-45.
[23]
Coopersmith, S. (1967). The Antecedents of Self-Esteem. San Francisco: Freeman WH.
[24]
Corwyn, R. F. (2000). The Factor Structure of Global Self-Esteem among Adolescents and Adults. Journal of Research in Personality, 34, 357-379. https://doi.org/10.1006/jrpe.2000.2291
[25]
Cronbach, L. J. (1951). Coefficient Alpha and the Internal Structure of Tests. Psychometrika, 16, 297-334. https://doi.org/10.1007/BF02310555
[26]
de Vet, H. C. W., Terwee, C. B., Mokkink, L. B., & Knol, D. L. (2011). Measurement in Medicine: A Practical Guide. Cambridge: Cambridge University Press. https://doi.org/10.1017/CBO9780511996214
[27]
DeVellis, R. F. (2003). Scale Development: Theory and Applications (2nd ed.). Thousand Oaks, CA: Sage.
[28]
Diener, E., & Diener, M. (1995). Cross-Cultural Correlates of Life Satisfaction and Self-Esteem. Journal of Personality and Social Psychology, 68, 655-663. https://doi.org/10.1037/0022-3514.68.4.653
[29]
Dori, G. A., & Overholser, J. C. (1999). Depression, Hopelessness, and Self-Esteem: Accounting for Suicidality in Adolescent Psychiatric Inpatients. Suicide and Life-Threatening Behavior, 29, 309-318.
[30]
EPHS (2010). Eritrea: Population and Health Survey: 2010. Asmara: The State of Eritrea and the National Statistics Office.
[31]
Eritrea MDG (2014). Health Millennium Development Goals Report: Innovations Driving Health MDGs in Eritrea. Asmara: Ministry of Health and United Nations Development Programme (UNDP) in Eritrea. http://www.er.undp.org/content/da-m/eritrea/docs/MDGs/Eritrea%20Health%20MDGs%20Report%202014.pdf?download
[32]
Feather, N. T., & McKee, I. R. (1993). Global Self-Esteem and Attitudes toward the Higher Achiever for Australian and Japanese Students. Social Psychology Quarterly, 56, 65-76. https://doi.org/10.2307/2786646
[33]
Ferris, D. L., Lian, H., Brown, D. J., Pang, F. X., & Keeping, L. M. (2010). Self-Esteem and Job Performance: The Moderating Role of Self-Esteem Contingencies. Personnel Psychology, 63, 561-593. https://doi.org/10.1111/j.1744-6570.2010.01181.x
[34]
Field, A. (2009). Discovering Statistics Using SPSS (3rd ed.). London: Sage.
[35]
Fromont, A., Haddad, S., Heinmüller, R., Dujardin, B. T., & Casini, A. (2017). Exploring the Validity of Scores from the Rosenberg Self-Esteem Scale (RSES) in Burundi: A Multi-Strategy Approach. Journal of Psychology in Africa, 27, 316-324. https://doi.org/10.1080/14330237.2017.1347751
[36]
Frost, J., & McKelvie, S. (2004). Self-Esteem and Body Satisfaction in Male and Female Elementary School, High School, and University Students. Sex Roles, 51, 45-54. https://doi.org/10.1023/B:SERS.0000032308.90104.c6
[37]
Furr, R. M., & Bacharach, V. R. (2013). Psychometrics: An Introduction (2nd ed.). Thousand Oaks, CA: Sage.
[38]
George, D., & Mallery, P. (2003). SPSS for Windows—Step by Step: A Simple Guide and Reference. 11.0 Update (4th ed.). Boston, MA: Allyn & Bacon.
[39]
Gleason, J. H., Alexander, A. M., & Somers, C. L. (2000). Later Adolescents’ Reactions to Three Types of Childhood Teasing: Relations with Self-Esteem and Body Image. Social Behavior and Personality, 28, 471-480. https://doi.org/10.2224/sbp.2000.28.5.471
[40]
Gómez-Lugo, M., Espada, J. P., Morales, A., Marchal-Bertrand, L., Soler, F., & Vallejo-Medina, P. (2016). Adaptation, Validation, Reliability and Factorial Equivalence of the Rosenberg Self-Esteem Scale in Colombian and Spanish Population. Spanish Journal of Psychology, 19, e66. https://doi.org/10.1017/sjp.2016.67
[41]
Gorusch, R. L. (1983). Factor Analysis (2nd ed.). Hillsdale, NJ: Lawrence Erlbaum Associates.
[42]
Gray-Little, B., Williams, V. S. L., & Hancock, T. D. (1997). An Item Response Theory Analysis of the Rosenberg Self-Esteem Scale. Personality and Social Psychology Bulletin, 23, 443-451. https://doi.org/10.1177/0146167297235001
[43]
Green, S. P., & Pritchard, M. E. (2003). Predictors of Body Image Dissatisfaction in Adult Men and Women. Social Behavior and Personality, 31, 215-222. https://doi.org/10.2224/sbp.2003.31.3.215
[44]
Hair, J. F., Ringle, C. M., & Sarstedt, M. (2011). PLS-SEM: Indeed a Silver Bullet. Journal of Marketing Theory and Practice, 19, 139-151. https://doi.org/10.2753/MTP1069-6679190202
[45]
Huang, C., & Dong, N. (2012). Factor Structures of the Rosenberg Self-Esteem Scale: A Meta Analysis of Pattern Matrices. European Journal of Psychological Assessment, 28, 132-138. https://doi.org/10.1027/1015-5759/a000101
[46]
Hyland, P., Boduszek, D., Dhingra, K., & Shevlin, M. (2014). A Bifactor Approach to Modelling the Rosenberg Self-Esteem Scale. Personality and Individual Differences, 66, 188-192. https://doi.org/10.1016/j.paid.2014.03.034
[47]
IMF (2003). Eritrea: Selected Issues and Statistical Appendix. IMF Country Report No. 03/166. Washington DC: International Monetary Fund. https://doi.org/10.5089/9781451811971.002
[48]
IMF (2016). World Economic Outlook Database: April 2016. Washington DC: International Monetary Fund. http://www.imf.org/external/data.htm
[49]
Kaiser, H. F. (1974). An Index of Factorial Simplicity. Psychometrika, 39, 31-36. https://doi.org/10.1007/BF02291575
[50]
Kaplan, H. (1980). Self-Attitudes and Deviant Behavior. Santa Monica, CA: Goodyear.
[51]
Kaplan, H., & Pokorney, A. (1976). Self-Derogation and Suicide. Social Science and Medicine, 10, 113-121. https://doi.org/10.1016/0037-7856(76)90062-7
[52]
Kling, K. C., Hyde, J. S., Showers, C. J., & Buswell, B. N. (1999). Gender Differences in Self-Esteem: A Meta-Analysis. Psychological Bulletin, 125, 470-500. https://doi.org/10.1037/0033-2909.125.4.470
[53]
Kususanto, P., & Chua, M. (2012). Students’ Self-Esteem at School: The Risk, the Challenge, and the Cure. Journal of Education and Learning, 6, 1-14. https://doi.org/10.11591/edulearn.v6i1.185
[54]
Leung, K., & Lau, S. (1989). Effects of Self-Concept and Perceived Disapproval of Delinquent Behavior in School Children. Journal of Youth and Adolescence, 18, 145-159. https://doi.org/10.1007/BF02139254
[55]
Li, L. H., Yn, L. M., Huey, T. C., Pei, H. P., Cheong, K. C., Ghazali, S. M., Veloo, Y., & Hock, L. K. (2019). Construct Validity and Reliability of Rosenberg Self-Esteem Scale-Malay (RSES-M) among Upper Secondary School Students in Malaysia. Malaysian Journal of Medicine and Health Sciences, 15, 32-38.
[56]
Litwin, M. S. (2003). How to Assess and Interpret Survey Psychometrics (2nd ed.). Thousand Oaks, CA: Sage. https://doi.org/10.4135/9781412984409
[57]
MacCallum, R. C., Widaman, K. F., Zhang, S., & Hong, S. (1999). Sample Size in Factor Analysis. Psychological Methods, 4, 84-99. https://doi.org/10.1037/1082-989X.4.1.84
[58]
Marsh, H. W., Scalas, L. F., & Nagengast, B. (2010). Longitudinal Tests of Competing Factor Structures for the Rosenberg Self-Esteem Scale: Traits, Ephemeral Artifacts, and Stable Response Styles. Psychological Assessment, 22, 366-381. https://doi.org/10.1037/a0019225
[59]
Marshall, S. L., Parker, P. D., Ciarrochi, J., & Heaven, P. C. L. (2014). Is Self-Esteem Cause or Consequence of Social Support? A Four-Year Longitudinal Study. Child Development, 85, 1275-1291. https://doi.org/10.1111/cdev.12176
[60]
Marshall, S. L., Parker, P. D., Ciarrochi, J., Sahdra, B., Jackson, C. J., & Heaven, P. C. L. (2015). Self-Compassion Protects against the Negative Effects of Low Self-Esteem: A Longitudinal Study in a Large Adolescent Sample. Personality and Individual Differences, 74, 116-121. https://doi.org/10.1016/j.paid.2014.09.013
[61]
Martín-Albo, J., Núñez, J. L., Navarro, J. G., & Grijalvo, F. (2007). The Rosenberg Self-Esteem Scale: Translation and Validation in University Students. Spanish Journal of Psychology, 10, 458-467. https://doi.org/10.1017/S1138741600006727
[62]
McMillan, J. H., & Schumacher, S. (2001). Research in Education: A Conceptual Introduction. New York: Longman.
[63]
Michaelides, M. P., Zenger, M., Koutsogiorgi, C., Brahler, E., Stobel-Richter, Y., & Berth, H. (2016). Personality Correlates and Gender Invariance of Wording Effects in the German Version of the Rosenberg Self-Esteem Scale. Personality and Individual Differences, 97, 13-18. https://doi.org/10.1016/j.paid.2016.03.011
[64]
Mimura, C., & Griffiths, P. (2007). A Japanese Version of the Rosenberg Self-Esteem Scale: Translation and Equivalence Assessment. Journal of Psychosomatic Research, 62, 589-594. https://doi.org/10.1016/j.jpsychores.2006.11.004
[65]
Muñoz, J. M., & Alonso, F. M. (2013). Life Satisfaction: Its Relationship with Prejudice, National Identity, Self-Esteem and Material Well-Being in Immigrants. Acta Colombiana de Psicología, 15, 99-108.
[66]
Norris, M., & Lecavalier, L. (2010). Evaluating the Use of Exploratory Factor Analysis in Developmental Disability Psychological Research. Journal of Autism and Developmental Disorders, 40, 8-20. https://doi.org/10.1007/s10803-009-0816-2
[67]
Nunnally, J. C., & Bernstein, I. H. (1994). Psychometric Theory (3rd ed.). New York: McGraw-Hill.
[68]
Oladipo, S. E., & Bolajoko, M. I. (2014). Exploring the Suitability of Rosenberg Self-Esteem Scale for Adult Use in South-Western Nigeria. Gender & Behaviour, 12, 6027-6034.
[69]
Page, R. C., & Cheng, H. (1992). A Preliminary Investigation of Chinese and American Perceptions of the Self. Psychologia, 35, 12-20.
[70]
Paterson, G., Power, K., Yellowlees, A., Park, K., & Taylor, L. (2006). The Relationship between Two-Dimensional Self-Esteem and Problem Solving Style in an Anorexic Inpatient Sample. European Eating Disorder Review, 15, 70-77. https://doi.org/10.1002/erv.708
[71]
Pelham, B. W., & Swann Jr., W. B. (1989). From Self-Conceptions to Self-Worth: On the Sources and Structure of Global Self-Esteem. Journal of Personality and Social Psychology, 57, 672-678. https://doi.org/10.1037/0022-3514.57.4.672
[72]
Pose, R. R., & Samuels, F. (2011). Progress in Health in Eritrea: Cost-Effective Inter-Sectoral Interventions and a Long-Term Perspective. London: Overseas Development Institute.
[73]
Prezza, M., Trombaccia, F. R., & Armento, L. (1997). La Scala Dell’Autostima di Rosenberg: Traduzione e Validazione Italiana. Bollettino di Psicologia Applicata, 223, 35-44.
[74]
Pullmann, H., & Allik, J. (2000). The Rosenberg Self-Esteem Scale: Its Dimensionality, Stability and Personality Correlates in Estonia. Personality and Individual Differences, 28, 701-715. https://doi.org/10.1016/S0191-8869(99)00132-4
[75]
Rice, K. G., Ashby, J. S., & Slaney, R. B. (1998). Self-Esteem as a Mediator between Perfectionism and Depression: A Structural Equations Analysis. Journal of Counseling Psychology, 45, 304-314. https://doi.org/10.1037/0022-0167.45.3.304
[76]
Robins, R. W., Hendin, H. M., & Trzesniewski, K. H. (2001). Measuring Global Self-Esteem: Construct Validation of a Single-Item Measure and the Rosenberg Self-Esteem Scale. Personality and Social Psychology Bulletin, 27, 151-161. https://doi.org/10.1177/0146167201272002
[77]
Rojas-Barahona, C. A., Zegers, B., & Förster, C. E. (2009). La Escala de Autoestima de Rosenberg: Validación para Chile en una Muestra de Jóvenes Adultos, Adultos y Adultos Mayores. Revista Médica de Chile, 137, 791-800. https://doi.org/10.4067/S0034-98872009000600009
[78]
Rosenberg, M. (1965). Society and the Adolescent Self-Image. Princeton, NJ: Princeton University Press. https://doi.org/10.1515/9781400876136
[79]
Roth, M., Decker, O., Herzberg, P. Y., & Bralher, E. (2008). Dimensionality and Norms of the Rosenberg Self-Esteem Scale in a German General Population Sample. European Journal of Psychological Assessment, 24, 190-197. https://doi.org/10.1027/1015-5759.24.3.190
[80]
Sánchez, E., & Barrón, A. (2003). Social Psychology of Mental Health: The Social Structure and Personality Perspective. The Spanish Journal of Psychology, 6, 3-11. https://doi.org/10.1017/S1138741600005163
[81]
Sarstedt, M., & Mooi, E. (2019). A Concise Guide to Market Research (3rd ed.). Berlin: Springer-Verlag. https://doi.org/10.1007/978-3-662-56707-4
[82]
Schmitt, D. P., & Allik, J. (2005). Simultaneous Administration of the Rosenberg Self-Esteem Scale in 53 Nations: Exploring the Universal and Culture-Specific Features of Global Self-Esteem. Journal of Personality and Social Psychology, 89, 623-642. https://doi.org/10.1037/0022-3514.89.4.623
[83]
Shapurian, R., Hojat, M., & Nayerahmadi, H. (1987). Psychometric Characteristics and Dimensionality of a Persian Version of the Rosenberg Self-Esteem Scale. Perceptual and Motor Skills, 65, 27-34. https://doi.org/10.2466/pms.1987.65.1.27
[84]
Silbereisen, R. K., & Wiesner, M. (2002). Lessons from Research on the Consequences of German Unification: Continuity and Discontinuity of Self-Efficacy and the Timing of Psychosocial Transitions. Applied Psychology, 51, 291-317. https://doi.org/10.1111/1464-0597.00093
[85]
Sousa, V. D., & Rojjanasrirat, W. (2011). Translation, Adaptation and Validation of Instruments or Scales for Use in Cross-Cultural Health Care Research: A Clear and User-Friendly Guideline. Journal of Evaluation in Clinical Practice, 17, 268-274. https://doi.org/10.1111/j.1365-2753.2010.01434.x
[86]
Stormer, S. M., & Thompson, J. K. (1996). Explanations of Body Image Disturbance: A Test of Maturational Status, Negative Verbal Commentary, Social Comparison, and Sociocultural Hypotheses. International Journal of Eating Disorders, 19, 193-202. https://doi.org/10.1002/(SICI)1098-108X(199603)19:2<193::AID-EAT10>3.0.CO;2-W
[87]
Tabachnick, B. G., & Fidell, L. S. (2007). Using Multivariate Statistics (5th ed.). Boston, MA: Pearson.
[88]
Tomas, J. M., & Oliver, A. (1999). Rosenberg’s Self-Esteem Scale: Two Factors or Method Effects. Structural Equation Modeling, 6, 84-98. https://doi.org/10.1080/10705519909540120
[89]
Twenge, J. M., & Crocker, J. (2002). Race and Self-Esteem: Meta-Analyses Comparing Whites, Blacks, Hispanics, Asians, and American Indians and Comment on Gray-Little and Hafdahl (2000). Psychological Bulletin, 128, 371-408. https://doi.org/10.1037/0033-2909.128.3.371
[90]
UNDP (2014). Innovations Driving Health MDGs in Eritrea: Health Millennium Development Goals Report (Abridged Version). Asmara: Ministry of Health and United Nations Development Programme (UNDP) in Eritrea. http://www.er.undp.org/-content/dam/eritrea/docs/MDGs/Abridged%20MDG%20report_final.pdf
[91]
Vallieres, E. F., & Vallerand, R. J. (1990). Traduction et Validation Canadienne-Française de l’Echelle de l’Estime de Soi de Rosenberg. International Journal of Psychology, 25, 305-316. https://doi.org/10.1080/00207599008247865
[92]
Verkuyten, M. (2003). Positive and Negative Self-Esteem among Ethnic Minority Early Adolescents: Social and Cultural Sources and Threats. Journal of Youth and Adolescence, 32, 267-277. https://doi.org/10.1023/A:1023032910627
[93]
Westaway, M. S., & Maluka, C. S. (2005). Are Life Satisfaction and Self-Esteem Distinct Constructs? A Black South African Perspective. Psychological Reports, 97, 567-575. https://doi.org/10.2466/pr0.97.2.567-575
[94]
Westaway, M. S., Jordaan, E. R., & Tsai, J. (2015). Investigating the Psychometric Properties of the Rosenberg Self-Esteem Scale for South African Residents of Greater Pretoria. Evaluation and the Health Professions, 38, 181-199. https://doi.org/10.1177/0163278713504214
[95]
WHO (2017). World Health Organization Country Cooperation Strategy: At a Glance Eritrea. Geneva: World Health Organization.
[96]
Wichstrom, L. (2000). Predictors of Adolescent Suicide Attempts: A Nationally Representative Longitudinal Study of Norwegian Adolescents. Journal of the American Academy of Child & Adolescent Psychiatry, 39, 603-610. https://doi.org/10.1097/00004583-200005000-00014
[97]
Williams, B., Brown, T., & Onsman, A. (2012). Exploratory Factor Analysis: A Five-Step Guide for Novices. Australasian Journal of Paramedicine, 8, 1-13. https://doi.org/10.33151/ajp.8.3.93
[98]
World Bank (2018). Eritrea Overview: Context, Strategy, Results, Partners. Washington DC: The World Bank. http://www.worldbank.org./en/country/eritrea/overview
[99]
Zeigler-Hill, V., Holden, C. J., Enjaian, B., Southard, A. C., Besser, A., Li, H., & Zhang, Q. (2015). Self-Esteem Instability and Personality: The Connections between Feelings of Self-Worth and the Five Dimensions of Personality. Personality and Social Psychology Bulletin, 41, 183-198. https://doi.org/10.1177/0146167214559719
[100]
Zwick, W., & Velicer, W. (1986). Comparison of Five Rules for Determining the Number of Components to Retain. Psychological Bulletin, 99, 432-442. https://doi.org/10.1037/0033-2909.99.3.432