The questionnaire and interview methods are among the most widely used techniques for collecting primary data in research. In Gender and Development Studies, these methods help researchers understand gender relations, social inequalities, access to resources, decision-making, discrimination, empowerment, and the lived experiences of different groups. The choice between a questionnaire and an interview depends on the research objectives, the nature of respondents, literacy levels, and the type of information required. A questionnaire is a written set of carefully designed questions that respondents answer on their own. It is commonly used when researchers need information from a large number of participants spread across different locations. Questionnaires may contain closed-ended questions, where respondents choose from fixed options, or open-ended questions, where they express their views in their own words. The language should be simple, unbiased, and easy to understand. Before final administration, the questionnaire is usually pre-tested to identify ambiguities and improve reliability. In Gender and Development Studies, questionnaires are useful for collecting quantitative data on issues such as women's educational attainment, employment status, access to healthcare, political participation, ownership of assets, and awareness of government welfare schemes. For example, a researcher studying women's economic empowerment in rural areas may distribute a questionnaire asking respondents about their occupation, monthly income, participation in self-help groups, access to credit, and involvement in household financial decisions. The collected responses can be statistically analyzed to identify trends and patterns. The questionnaire method has several advantages. It is economical, saves time, allows researchers to cover