Qualitative research uses words rather than numbers to understand people's motivations, beliefs and attitudes. It typically involves small sample sizes and flexible research methods like interviews and focus groups. Qualitative research is best for understanding problems, testing ideas, and examining feelings and motivations in depth. Though not generalizable, it provides complex insights useful for product development, advertising and messaging. Common qualitative methods include interviews, focus groups, observations and projective techniques like word associations to probe underlying attitudes. Qualitative research requires skilled moderators and complex analysis but yields rich data on people's perspectives.