Week 9: Measurement

Measurement involves categorising and/or assigning values to the variable in question, and can be diverse in nature and level of operation. Understanding of measurement sclaes in research is very important  as Smith (2000) has described that in order to  statistically analyse self report, a researcher must have appropriate measurenmentt scales allowing them to convert collected information into numerals . Measurement may be qualitaitive as well as quantitative. Qualiitative attributes have labels or names rather than numbers, assigned to the respective categories. A measuring instrument may be uni-dimensional or multi-dimensional. This lesson describes four levels of measurement including Nominal, Ordinal, Interval and Ratio. It alsi aims to develop an understanding and importance of teh consepts of  reliability and Validity in research.

Download Files

measurement-levels-and-scales-chapter.pdf (3.60 MB )