The study of human behavior that emphasizes nonnumerical insights, focusing on thoughts, feelings, emotions, opinions, and experiences—answering the “what,” “how,” and “why” of a user’s behavior rather than “how many” or “how much” [See quantitative research]

The systematic process of determining whether a product or service meets specified requirements and functions free of any defects or bugs; QA specialists intentionally aim to find breaking points in software and products so that users don’t have to

The study of human behavior that focuses on behaviors that can be measured and expressed in numbers or figures [See qualitative research]

Qualitative or quantitative research method (depending on the format of questions) used to collect data from individuals about certain topics or experiences