References

Bryman, A. (2008) Social Research Methods, 3rd edn. Oxford: Oxford University Press.

Cresswell, J.W. (2011) Planning, Conducting, and Evaluating Qualitative Research, 4th edn, London: Pearson.

Newby, P. (2014) Research Methods for Education, 2nd edn. Harlow: Pearson Education Ltd.

O'Leary, Z. (2010) The Essential Guide to Doing Your Research Project. London: Sage.

Patterson, E.W. (2011) Initial teacher development in science: the impact of constructivist-informed practice on learning, Teacher Development, 15(1), pp69-86.

Punch, K. (2009) Introduction to Research Methods in Education. London: Sage.

Walliman, N. (2009) Your Research Project: A step-by-step guide for the first-time researcher, 2nd edn. London: Sage.

Winter, G. (2000) A comparative discussion of the notion of 'validity' in qualitative and quantitative research. The Qualitative Report, 4 (3-4), March. www.nova.edu/sss/QR/QR4-3/winter.html. Retrieved 10/7/15]