A Theoretical Examination of the Composite Index or Measuring a Variable Using Likert Scale

Abstract

The assumption whilst using Likert scales is that the intensity or strength of character and personality traits such as attitudes can be measured on a linear continuum from strongly agree to strongly disagree. This paper discusses Likert scale items vis-a-vis Likert type items and highlights the difference between the two. Likert scale used interrelated items that can be converted into a composite score during data analysis. As such appropriate inferential statistical techniques can be applied. Conversely Likert items are individual items based on an ordinal scale and data analysis is specific to the item and only non-parametric statistical methods are appropriate.