Can Likert Scale Data ever be Continuous

Can Likert Scale Data ever be Continuous - Can Likert Scale...

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Can Likert Scale Data ever be Continuous? A very common question is whether it is legitimate to use Likert scale data in parametric statistical procedures that require interval data, such as Linear Regression, ANOVA, and Factor Analysis. A typical Likert scale item has 5 to 11 points that indicate the degree of agreement with a statement, such as 1=Strongly Agree to 5=Strongly Disagree. It can be a 1 to 5 scale, 0 to 10, etc. The issue is that despite being made up of numbers, a Likert scale item is in fact a set of ordered categories. One camp maintains that as ordered categories, the intervals between the scale values are not equal. Any mean, correlation, or other numerical operation applied to them is invalid. Only nonparametic statistics should be used on Likert scale data (i.e. Jamieson, 2004). The other group maintains that while technically the Likert scale item is ordered, using it in parametric tests IS valid in some situations. For example, Lubke & Muthen (2004) found that it is possible to find true parameter values in factor
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Can Likert Scale Data ever be Continuous - Can Likert Scale...

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