Qualitative Versus Quantitative?
Qualitative research is used to uncover and understand thoughts and opinions thus providing a basis for further decision making. Quantitative research is used to measure and predict, leading to a final course of action. So basically, qualitative research/data would deals with descriptions, the data which can be observed but not measure, for example, feeling about a product or of a specific people(just like the interview about friendship that we just listened to in the seminar). Quantitative research/data would deals with number and the data can be measured. For example, temperature is something that we can measure.
Quantitative research methods provide numerical information which enables us/experimenter to analyse the data so much easier than Qualitative. And it is often associated with empirical researches, and it is thought to be unsuitable for social science/psychology research, while social science/psychology is more focusing on in-depth information (info/data got form qualitative research) and which is more suitable for social science/psychology research. The very main difference between quantitative and qualitative methods is the flexibility.
Although information obtained from qualitative research is so much harder to analyse or to summaries than quantitative research, it does not mean it is not as scientific. Another main difference is that researchers in quantitative research are looking for statistical validity and hopefully reliability as well while qualitative researchers are seeking for saturation of one/some specific area/topic.
In conclusion, there is no such way to say which research method would be better than the other, it is all depending on one situation and what the researcher is looking for.