I am studying Data Analysis online with my university teacher. May teacher asked me those questions. But I could not answer the most reasonably. Please help me.
Hello Tuan,
"1" and "5" values would represent the polar extremes or anchors on a 5-point, Likert-type response scale. Usually (but not always), "5" is the higher, or preferred, end of the scale options, whereas "1" is the lower end. Usually, verbal anchors are supplied to correspond with response points. For example, "1" might have as its descriptor, "Strongly Disagree," whereas "5" might have the descriptor "Strongly Agree." It depends on the specific instrument and the designer's choices.
What does a mean of any specific value (such as 3.37) communicate? It tells you that the arithmetic average of all the responses given in a sample was that value (and, in the case of 3.37, that value was slightly higher than the middle response option's nominal value of 3). Many people would advise against using an arithmetic mean for a single item, as the categories (1,2,3,4,5) do not strictly form an interval scale, but instead an ordinal scale. For this reason, the median and modal values may be more valuable for characterizing the "central" or the "most frequent" response, respectively.
Good luck with your work.
Wow! So great! Thank you very much for your insightful explanations, Mr. David.
Minh Tuan
Dr. Morse gives an excellent explanation. Adding to this; say, 1 = not at all important, 2 = slightly important, 3 = fairly important, 4 = very important, and 5 = extremely important. Then to facilitate data analysis, the means can be interpreted as follows: (i) not at all important =1.00–1.79, (ii) slightly important =1.80–2.59, (iii) fairly important = 2.60–3.39, (iv) very important = 3.40–4.19, and (v) extremely important = 4.20–5.00. Article Determinants of foreign direct investment (FDI) in the power...
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