A private investigator â also known as a PI, Private Detective or Private Eye â is someone that is hired to undertake an investigation. Most states require PIs to be trained and licensed. Investigators often have a law enforcement and/or a military background. Back to Top.
Quantitative vs Qualitative. Quantitative and Qualitative are two terms between which a variety of differences can be identified. Quantitative has a lot to do with the quantity of an object or a person. On the other hand, qualitative has a lot to do with the quality or the attribute of an object or a person.
Qualitative Research. Qualitative research gathers information that is not in numerical form. For example, diary accounts, open-ended questionnaires, unstructured interviews and unstructured observations. Qualitative data is typically descriptive data and as such is harder to analyze than quantitative data. Qualitative research is useful for studies at the individual level, and to find out, in depth, the ways in which people think or feel (e.g. case studies).