Answer:
1. The three common approaches to conducting research are quantitative, qualitative, and mixed methods. Quantitative emphasize objective measurements and the statistical, mathematical, or numerical analysis of data collected through polls, questionnaires, and surveys, or by manipulating pre-existing statistical data using computational techniques.. Qualitative collecting and analyzing non-numerical data (e.g., text, video, or audio) to understand concepts, opinions, or experiences. Mixed methods whereby researchers collect and analyse both quantitative and qualitative data within the same study.
2. Hard sciences use math explicitly, they have more control over the variables and conclusions. They include physics, chemistry and astronomy. Soft sciences use the process of collecting empirical data then use the best methods possible to analyze the information.
