Sampling Techniques

Researchers prefer use of samples from the population subset to record their inferences based on their perspective of entire group. In this regard, the two approaches that they use in social sciences include non probability and probability sampling techniques.

In aspects that concern sampling, participants need to understand the population, size and representative of the sample. Population is attributed to the entire category of the subject involved which serves as the focus of research plan. In this case, the particular are either non human or in human form. Conversely, sample refers to the number of subjects that is extracted from the study population. It is also essential for a researcher to identify the significance of the sample before they include it in the study (Veal, 2006).

Random sampling is a method that locates representatives of the population. It entails a systematic selection procedure to ensure that all the subjects in a population are equally represented to avoid biasness. To carry out sampling in a household survey, researchers use multistage sampling to select the location of study and clusters. To conduct telephone survey, researchers randomly choose telephone numbers from different households.

For a site or visitor surveys, taking samples incorporates alternative methods such as questionnaires and mobile interviews. Sampling in streets is based on major traits that include age, sex and structure of the society. In cases that apply to mail surveys, sampling is conducted from the mail list and tallied at the end. The sampling size that is needed should be based on the availability of information, budget and the outcome level of accuracy. For instance, when sampling populations that are small, the clusters are affected by the size when the population is less than 50,000. It is vital for the subject to be small in number during a qualitative research. In general, the sampling procedure must be executed and described with clear approaches to provide a full report.

Reference

Veal, A. J. (2006). Research methods for leisure and tourism: A practical guide. Pearson Education.

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