Research Design

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Describe some of the important research designs used in experimental hypothesis testing research study.

Research design is needed because it facilitates the smooth sailing of the various research operations, thereby making research as efficient as possible yielding maximal information with minimal expenditure of effort, time and money. Different research designs can be conveniently described if we categorize them as:(1) Research design in case of exploratory research studies;(2) Research design in case of descriptive and diagnostic research studies, and(3) Research design in case of hypothesis-testing research studies.

1. Research design in case of exploratory research studies

Exploratory research studies are also termed as Formulative research studies.
The main purpose of such studies is that of formulating a problem for more precise investigation or of developing the working hypotheses from an operational point of view. The major emphasis in such studies is on the discovery of ideas and insights. As such the research design appropriate for such studies must be flexible enough to provide opportunity for considering different aspects of a problem under study. Inbuilt flexibility in research design is needed because the research problem, broadly defined initially, is transformed into one with more precise meaning in exploratory studies, which fact may necessitate changes in the research procedure for gathering relevant data. Generally, the following three methods in the context of research design for such studies are talked about: (a) The survey of concerning literature ;( b) The experience survey and(c) The analysis of ‘insight-stimulating’ examples.

(a)The survey of concerning literature
This happens to be the most simple and fruitful method of formulating precisely the research problem or developing hypothesis. Hypotheses stated by earlier workers…...

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