抽样和效度

Q1 Social Sciences

Annals of the International Communication Association Pub Date : 2020-07-02 DOI:10.1080/23808985.2020.1792793

B. McEwan

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引用次数: 18

摘要

抽样策略与外部效度直接相关。研究者在选择抽样框架和抽样参与者时所做的选择需要清楚地表达出来。抽样选择会在研究结果中引入各种偏差，从而降低样本的外部有效性。本文讨论了抽样与外部有效性的关系，并简要介绍了抽样的重要概念，包括幂、中心极限定理、非概率抽样和概率抽样。在传播研究的背景下，对抽样相关的偏差进行了概述。最后，提出了研究人员和学科作为一个整体可能采取的策略，以改善与抽样有关的效度问题。

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Sampling and validity

ABSTRACT Sampling strategies are directly related to external validity. The choices researchers make in selecting sampling frames and sampling participants need to be clearly articulated. Sampling choices can introduce a variety of biases into research findings that reduce the external validity of samples. This essay discusses the relationship between sampling and external validity and provides a brief overview of important sampling concepts including power, the central limit theorem, nonprobability sampling and probability sampling. Sampling related biases are overviewed in the context of communication research. Finally, strategies that researchers and the discipline as a whole might adopt to ameliorate validity concerns related to sampling are proposed.

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来源期刊

Annals of the International Communication Association Social Sciences-Communication

CiteScore

10.90

自引率

0.00%

发文量