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Explaining the Types of Qualitative Analysis Methods. Qualitative research is a method of inquiry that finds widespread employment in social sciences, market research and other areas. Read on for some of the popular qualitative methods of data analysis.
Item Analysis describes the statistical analyses which allow measurement of the effectiveness of individual test items. An understanding of the factors which govern effectiveness (and a means of measuring them) can enable us to create more effective test questions and also regulate and standardise existing tests. There are three main types of Item Analysis: Item Response Theory, Rasch Measurement and Classical Test Theory. Classical Test Theory (traditionally the main method used in the United Kingdom) utilises two main statistics-Facility and Discrimination. The main problems with Classical Test Theory are that the conclusions drawn depend very much on the sample used to collect information.