Overview

Research Methods

Research methods are classified into two major paradigms: qualitative and quantitative research. Qualitative research uses linguistic data to deeply understand 'why' and 'how,' including methods such as interviews, observation, and case studies. Quantitative research uses numerical data to objectively measure 'how much' or 'how many,' including survey research, experiments, and statistical analysis. In recent years, mixed methods research that combines both approaches has gained attention.

research methods qualitative research quantitative research survey interview observation experiment social research academic research
code slug name description category dataType
Q01 survey-research Survey Research (Questionnaire Method) A research method that collects data from a large number of people using standardized questions. Quantitative Research Numerical Data
Q02 interview-research Interview Research A research method that collects detailed information from respondents through dialogue. Qualitative Research Linguistic Data
Q03 observation-research Observation Method A research method that directly observes and records the behavior and situations of subjects. Qualitative & Quantitative Research Behavioral Data
Q04 experimental-research Experimental Method A research method that manipulates and controls variables to prove causal relationships. Quantitative Research Numerical Data
Q05 case-study Case Study A research method that analyzes a specific individual, group, organization, or event in detail. Qualitative Research Diverse Data
Q06 ethnography Ethnography A research method that describes a specific culture or social group through long-term participant observation. Qualitative Research Linguistic & Behavioral Data
Q07 focus-group Focus Group Interview (FGI) A research method that collects opinions through group discussions with 6-10 participants. Qualitative Research Linguistic Data
Q08 longitudinal-study Longitudinal Study A research method that tracks the same subjects over a long period. Quantitative Research Time-Series Data
Q09 content-analysis Content Analysis A research method that systematically analyzes the content of documents, texts, and media. Qualitative & Quantitative Research Text Data
Q10 mixed-methods Mixed Methods Research A research method that combines qualitative and quantitative research. Integrated Research Composite Data

A classification of major research methods used in academic research and social surveys.