Research 38 Data collection 35 Social sciences 34 Methodology 28 Qualitative research 24 Sampling 23 Research methodology 18 Interviewing techniques 15 Agricultural Extension 14 Data Collection 13 data collection 12 Baseline surveys 11 Psychology 9 Data mining 8 Education 8 Data analysis 7 Research Design 7 Marketing research 6 Statistical methods 6 Business 5 Co-operation, banking and management 5 Quality control 5 Research design 5 Social Sciences 5 Data processing 4 Interviewing 4 Qualitative Research 4 Qualitative Sozialforschung 4 Quantitative research 4 Research Methodology 4