Archive | Sampling

Procedure of Selecting a Sample: 2 Methods | Research Methodology

The procedure of selecting a sample may be broadly classified under the following two heads: 1. Non-Probability Sampling Methods 2. Probability Sampling. 1. Non-Probability Sampling Methods: The common feature in non-probability sampling methods is that subjective judgments are used to determine the populations that are contained in the sample. We classify non-probability sampling into four groups: 1. Convenience Samples. 2. [...]

By |2018-08-01T07:43:11+00:00August 1, 2018|Sampling|Comments Off on Procedure of Selecting a Sample: 2 Methods | Research Methodology
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Stratified and Simple Random Sampling | Research Methodology

We have understood that in simple random sampling, the variance of the sample estimate of the population is: (a) Inversely proportional to the sample size, (b) Directly proportional to the variability of the sampling units in the population. We also know that the precision is defined as reciprocal of its sampling variance. Therefore as sample size increases precision increases. Apart [...]

By |2018-08-01T07:43:11+00:00August 1, 2018|Sampling|Comments Off on Stratified and Simple Random Sampling | Research Methodology
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3 Different Types of Sampling | Research Methodology

This article throws light upon the three different types of sampling techniques followed in research process. The types are: 1. Cluster Sampling 2. Multistage Sampling 3. Multiphase Sampling. Type # 1. Cluster Sampling: In this type of sampling divide the total population, depending upon the problem under study, into some recognizable sub-divisions which are termed as clusters and a simple [...]

By |2018-08-01T07:43:10+00:00August 1, 2018|Sampling|Comments Off on 3 Different Types of Sampling | Research Methodology
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