Qualitative Research: Qualitative research is a method of collecting and analyzing non-numeric data to understand concepts, opinions, or experiences. It often explores the 'why' or 'how' behind decisions, thoughts, and motivations instead of focusing on numerical data. Common qualitative research methods include interviews, focus groups, observations, and content analysis. This type of research is particularly useful in marketing for gathering insights about customer preferences, needs, and perceptions, which can help inform marketing strategies and campaigns.