ABSTRACT
This chapter addresses statistics and procedures for: conducting factor analysis (what it is, how to do it and how to analyse data for factor analysis); what to look for in factor analysis output; cluster analysis, what it is, how to do it and what to look for; a note on structural equation modelling and examining graphic output; and a note on multilevel modelling. It introduces different kinds of factor analysis and how to choose from the different possible types. The chapter indicates when these statistics can and cannot be used, how to decide which statistics to use, and the ‘safety checks’ required before proceeding to use each statistic. It provides worked examples of factor analysis, cluster analysis and structural equation modelling, together with the SPSS command sequences for working with factor analysis and structural equation modelling, worked examples of how to analyse SPSS tables of output and examples of how to report results using the different statistics in this chapter.
