question: Provide a list of three key data analysis techniques that can be used in sociological research, ensuring that each technique is described in ENGLISH and all descriptions are in CAPITAL LETTERS.
answer: 1. **SURVEY ANALYSIS**: THIS TECHNIQUE INVOLVES COLLECTING DATA FROM A LARGE GROUP OF PEOPLE USING QUESTIONNAIRES OR INTERVIEWS. IT IS USED TO GATHER INFORMATION ON PEOPLE'S ATTITUDES, BELIEFS, AND BEHAVIORS. SURVEY ANALYSIS ALLOWS SOCIOLOGISTS TO IDENTIFY TRENDS AND CORRELATIONS WITHIN SPECIFIC POPULATIONS.
  
  2. **CONTENT ANALYSIS**: CONTENT ANALYSIS IS A METHOD USED TO SYSTEMATICALLY ANALYZE TEXTUAL, VISUAL, OR AUDIO MATERIALS. SOCIOLOGISTS USE THIS TECHNIQUE TO INTERPRET AND QUANTIFY THE PRESENCE OF CERTAIN WORDS, THEMES, OR CONCEPTS, ALLOWING FOR THE EXAMINATION OF COMMUNICATION PATTERNS AND SOCIAL TRENDS OVER TIME.
  
  3. **ETHNOGRAPHY**: ETHNOGRAPHY INVOLVES THE IN-DEPTH STUDY OF PEOPLE AND CULTURES IN THEIR NATURAL ENVIRONMENTS. SOCIOLOGISTS ENGAGE IN PARTICIPANT OBSERVATION AND CONDUCT INTERVIEWS TO GAIN A DEEP UNDERSTANDING OF SOCIAL INTERACTIONS AND CULTURAL PRACTICES. THIS TECHNIQUE PROVIDES RICH, QUALITATIVE DATA THAT HIGHLIGHTS THE NUANCES OF SOCIAL LIFE.