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# Research Design: Aspects and Need Research design is the overall plan, structure, and strategy adopted by a researcher for conducting a research study in a systematic and scientific manner. It provides a framework for collecting, measuring, analyzing, and interpreting data in order to answer the research questions or test the research hypotheses. A good research design connects the research problem with the methods used to obtain evidence. It helps the researcher decide what information is required, from whom it should be collected, how it should be collected, and how it should be analyzed. Thus, research design serves as a blueprint for the entire research process. The first important aspect of research design is the statement of the research problem. A research design begins with a clearly defined research problem because the nature of the problem determines the methods and procedures to be adopted. The researcher must identify what is to be studied, why it is important, and what specific questions the research seeks to answer. A clearly formulated problem provides direction to all subsequent stages of the investigation. The objectives of the study constitute another important aspect. Research objectives specify what the researcher intends to achieve through the investigation. Objectives should be clear, specific, realistic, and related directly to the research problem. They guide the selection of variables, data collection methods, sample, and analytical techniques. In quantitative research, objectives may also lead to the formulation of hypotheses, whereas qualitative research may focus more on exploring meanings, experiences, or social processes. The nature and type of research constitute another aspect of research design. Depending on the purpose, research may be exploratory, descriptive, diagnostic, explanatory, experimental, historical, or evaluative. Exploratory research is useful when limited information is available about a problem. Descriptive research seeks to describe characteristics of a population or phenomenon. Experimental research examines cause-and-effect relationships by manipulating variables under controlled conditions. The researcher must select a design that is appropriate to the purpose and nature of the study. The identification of _______ _______ _______ ________ ______ _____ ____ ________ _________ _____ _______ ______.
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