What factors make a difference to getting a degree in New Zealand?

One of the questions that has arisen from the publication of attrition rates in tertiary education in New Zealand, especially for institutional planners and policy makers, is what factors lead a student to decide to stay in study or leave before completing. This question has been extensively researched overseas, but less so in New Zealand. This is the question addressed in this report: What factors make a difference to getting a degree in New Zealand?