Reseach methodologies in education

Research methodology in education
assignment( 5000 words) identify and critique preferred research method and explore its implication from several potential methodologies .
My research question
what are the factors that affect ICT use in physics lessons?
Method
a quantitive inquiry utilising questionnaire to explore the factors that affect ICT use in physics lessons
philosophy methodologies
1-positivism 2- interpretivism
I want to compare, contrast and critique in breadth and depth how to use sample, limitation, analyses, data gathering and ethics in this philosophy methodologies.