Topics: Sample size, Sampling, Sample Pages: 2 (516 words) Published: May 17, 2013


Research Methods is basically a scientific way to get the data for the purpose and specific uses. A methodology will consist of phases, themselves consisting of sub-phases, which will guide the systems developers in their choice of techniques that might be appropriate at each stage of the project and also help them plan, manage, control and evaluate research. It is usually based on some philosophical view; otherwise it is merely a method, like a recipe. Method that I would like to choose for this study is the method of sampling where inference is made to the whole by examining a part.

Purpose of using sampling

The purpose of sampling is to provide various types of statistical information of a qualitative or quantitative nature about the whole by examining a few selected units. The sampling method is the scientific procedure of selecting those sampling units, which would provide the required estimates with associated margins of uncertainty, arising from examining only a part and not the whole. The importance of sampling is that you can determine the adequate respondents from the total number of target population. Thus, it will be used in the research study, which should be adequate to warrant generalization of the findings to the target population. And the sample size represents the characteristics of the whole population. In addition, Sampling plans should be designed in such a way that the resulting data will contain a representative sample of the parameters of interest and allow for all questions, as stated in the goals, to be answered.

The advantage of using sampling

The advantages of sampling are: it is economical and practical; faster and cheaper; it can yield more comprehensive information; it is more accurate; and because of savings it permits in time and money, the sample survey makes possible the use of much larger and much more varied populations than would be possible for the same expenditure if one were...
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