What is Research Design?

...Start of the What is Research Design? ...

Research Design . The research designer understandably cannot hold all his decisions in his head. Even if he could, he would have difficulty in understanding how these are inter-related. Therefore, he records his decisions on paper or record disc by using relevant symbols or concepts. Such a symbolic construction may be called the research design or model.

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It possesses characteristics of randomness and some non-probability traits. Suitability: Systematic selection can be applied to various populations such as students in a class, houses in a street, telephone directory etc. Advantages: The advantages are it is simpler than random sampling, easy to use, easy to instruct, requires less time, it’s cheaper, easier to check, . sample is spread evenly over the population, and it is statistically more efficient. Disadvantages: The disadvantages are it ignores all elements between two kth elements selected, each element does not have equal chance of being selected, and this method sometimes gives a biased sample.

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• Bibliography . • Copies of data collection instruments . • Technical details on sampling plan . • Complex tables . • Glossary of new terms used.

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