Regarding the statistical analyses, please refer to:
1. Landau, S. and Everitt, B. S.(2004). A Handbook of Statistical analyses using SPSS.
2.Howitt, D. and Cramer, D.(2008). Introduction to SPSS.
For students' performance, please refer to
3. HEIs Quality Improvement Through Students and Academic Staff’s Perception: Data Analysis and Robustness of the Results. International Journal for Quality Research, 2017,Vol.11, No.2, pp.261-278 .
4. Standards, benchmarks and qualitative indicators to enhance the institution’s activities and performance: Surveys and data analysis. International Journal of Knowledge-Based Organizations (IJKBO), 2015, 5 (4), pp.38-62