Sample Size Determination in Survey Research
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Published
Jun 25, 2020
Page:
90-97
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Anokye M. Adam
Department of Finance, School of Business, University of Cape Coast, Ghana.
Abstract
Obtaining a representative sample size remains critical to survey researchers because of its implication for cost, time and precision of the sample estimate. However, the difficulty of obtaining a good estimate of population variance coupled with insufficient skills in sampling theory impede the researchers’ ability to obtain an optimum sample in survey research. This paper proposes an adjustment to the margin of error in Yamane’s (1967) formula to make it applicable for use in determining optimum sample size for both continuous and categorical variables at all levels of confidence. A minimum sample size determination table is developed for use by researchers based on the adjusted formula developed in this paper.
Keywords:
Sample size determination, Yamane formula, survey research, Likert scale.
Article Details
How to Cite
Section
Short Research Article
References
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Taherdoost H. Determining sample size; how to calculate survey sample size. International Journal of Economics and Management Systems. 2017;2:237–239.
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Israel GD. Determining sample size, University of Florida Cooperative Extension Service, Institute of Food and Agriculture Sciences, EDIS; 1992.
Krejcie RV, Morgan DW. Determining sample size for research activities. Educational and Psychological Measurement. 1970;30:607-610.
Cochran WG. Sampling techniques (3rd ed.). New York: John Wiley & Sons; 1977.
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Rasmussen J. Data transformation, type 1 error rates and power. British Journal of Mathematical and Statistical Psychology. 1989;42:203-213.
Owuor CO. Implications of using Likert data in multiple regression analysis. University of British Columbia: Doctoral dissertation; 2001.
Norman G. Likert scales, levels of measurement and the “laws” of statistics. Adv Health Sci Educ Theory Pract. 2010;15(5):625–632.
Taherdoost H. Determining sample size; how to calculate survey sample size. International Journal of Economics and Management Systems. 2017;2:237–239.
Tejada JJ, Punzalan JRB. On the misuse of Slovin's formula. The Philippine Statistician. 2012;61(1):129–136.
Wunsch D. Survey research: Determining sample size and representative response. Business Education Forum. 1986;40(5): 31-34.
Israel GD. Determining sample size, University of Florida Cooperative Extension Service, Institute of Food and Agriculture Sciences, EDIS; 1992.
Krejcie RV, Morgan DW. Determining sample size for research activities. Educational and Psychological Measurement. 1970;30:607-610.
Cochran WG. Sampling techniques (3rd ed.). New York: John Wiley & Sons; 1977.
Park J, Jung M. A note on determination of sample size for a Likert scale. Communication of the Korean Statistical Society. 2009;16:669-673.
Rasmussen J. Data transformation, type 1 error rates and power. British Journal of Mathematical and Statistical Psychology. 1989;42:203-213.
Owuor CO. Implications of using Likert data in multiple regression analysis. University of British Columbia: Doctoral dissertation; 2001.
Norman G. Likert scales, levels of measurement and the “laws” of statistics. Adv Health Sci Educ Theory Pract. 2010;15(5):625–632.