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Sampling

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The ECPH Encyclopedia of Psychology

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Sampling is a process of extracting a group of observations from a larger population.

Principles

In psychological experiments, it is neither feasible nor necessary to include all research subjects as participants. Experiments usually take representative samples as subjects to carry out research. The basic principles of sampling are:

  1. 1.

    Representativeness. A sample does not mean that it is a microcosm of the whole, having all the characteristics of the whole characteristics, but rather is based on the statistical significance of the obtained. It can be considered a representative sample when the statistical value of the sample approximates the parameter value of the population.

  2. 2.

    Randomness. In sampling, the probability (probability) that each individual in the population will be selected is exactly equal.

Procedure

The general procedure of sampling is as follows: (1) Specify the population. According to the purpose of the study, determine the overall scope of the study (such as the...

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Further Reading

  1. Kantowitz BH, Roediger HL, Elmes DG (2015) Experimental psychology, 10th edn. Cengage Learning, Boston

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  2. Zhang X-M, Hua S (2014) Experimental psychology. Beijing Normal University Publishing Group, Beijing

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Authors and Affiliations

  1. Faculty of Education, Guangxi Normal University, Guilin, China

    Wei Yiping

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  1. Wei Yiping
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© 2024 Encyclopedia of China Publishing House

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Yiping, W. (2024). Sampling. In: The ECPH Encyclopedia of Psychology. Springer, Singapore. https://doi.org/10.1007/978-981-99-6000-2_237-1

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  • DOI: https://doi.org/10.1007/978-981-99-6000-2_237-1

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-99-6000-2

  • Online ISBN: 978-981-99-6000-2

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