More and more people tend to be interested in science due to the availability of information. The information provided by mass media is to be relevant and reliable.
Online marketing and advertising actively develop nowadays, and modern advertisers need to focus on the customers' attitudes and behaviours in the context of the effectiveness of the advertisement's location on the web page.
In essence, we see a process where scientific method is used to discover new problems in the course of resolving others.
The advantage of using in-depth interviews is that the interviewer may record the conversation, which would be used later to complement the notes taken.