Problem Definition

What are the long term effects (150,000km) of an exhaust gas recirculation (EGR) system on turbo diesel engines in non-commercial passenger vehicles?

2.1 Selecting a quantitative approach

1. Define variable(s) that you need to measure in your research (quantitative source(s) of data).

2. Describe the factors that indicate you do not need to WORK with people directly as subjects to gather qualitative data.

3. Describe the factors that might dictate a high level of structure in this research.

2.2 Selecting a qualitative approach

1. Describe the qualitative source(s) of data that you need for your research that cannot easily be converted to quantitative information.

2. Describe the factors that indicate you need to work with people directly as subjects on this problem to gather qualitative data.

3. Describe factors that might dictate a low level of structure in this research.