Economics Essay

1857 WordsJun 9, 20148 Pages
SAMPLING METHODS IN SOCIAL RESEARCH Muzammil Haque Ph.D Scholar Visva Bharati, Santiniketan,West Bangal Sampling may be defined as the selection of some part of an aggregate or totality on the basis of which a judgement or inference about the aggregate or totality is made. In other words it is the process of obtaining information about an entire population by examining only a part of it. In most of the research work and surveys the usual approach happens to be make generalization or to draw inferences based on samples about the parameters of population from which the population are taken. So we can now define a sample is any number of persons, units or objects selected to represent the population according to some rule or plan. The census method is the enumeration of all the numbers or units of the population to get the idea of the population where as sampling is the method of selecting a fraction of the population in such a way that it represents the whole population. Sampling is used in practice for a variety of reasons such as i) Sampling is cheaper than census method. It is economical too. ii) As the magnitude of operations is small in case of sampling, so data collection and analysis can be carried out accurately and efficiently. iii) Sampling is the only way when the population is as large as the population of a country. iv) Sampling enables the researcher to make a precise estimate of the standard error which helps in obtaining information concerning some characteristic of the population. Sampling methods Sampling methods are broadly categorized into two groups: i.) Probability sampling methods. ii) Non probability sampling methods. Muzammil Haque ,Ph.D Scholar Visva Bharati, Santiniketan,West Bangal Page 1 I. PROBABILITY SAMPLLING METHODS In probability sampling methods the universe from which the sample is drawn should be known to the

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