Origin and composition of Likert scale
The way attitudinal research has changed greatly since Likert, R. introduced his scale in 1932 (Edmondson, Edwards, & Boyer, 2012). It uses the usual bipolar response points that today almost everyone is familiar with. According to Edmondson, Edwards, and Boyer (2012), Likert scale has proved more reliable and used only half the number of items used by other popular methods at the time of its introduction. Also, in most cases, the scale does not require judges which added to its simplicity. Since then, Likert scale has become very popular and many modifications have been added to enhance the accuracy of the results (Edmondson, Edwards, & Boyer, 2012).
Likert scale is composed of the analysis of a series of statements to which respondents agree or disagree with variable degrees (Albaum, 1997). According to Edmondson, Edwards, and Boyer (2012), originally, Likert scale was composed of 4 different components. First one was strictly a yes/no/...
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...the upcoming challenges in the healthcare field, organizations need to make the best use all resources including consumers’ attitudes and judgments.
Albaum, J. (1997). The Likert scale revisited: An alternate version. Journal of the Market Research Society, 39(2), 331-348.
Edmondson, D. R., Edwards, Y. D., & Boyer, S. L. (2012). Likert scales: A marketing perspective. International journal of business, Marketing, & Decision Science, 5(2), 73-85.
Grogan, S., Conner, M., Willits, D., & Norman, P. (1995). Development of a questionnaire to measure patients’ satisfaction with general practitioners’ services. The British Journal of General Practice, 35(399), 525-529. Retrieved from: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1239403/
Robertson, J. (2012). Likert-type scales, statistical methods, and effect sizes. Communications of the ACM, 55(5), 6-7.
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