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Why should multiple sampling methodologies be considered during initial research planning? Explain. How can sampling issues...

  • Why should multiple sampling methodologies be considered during initial research planning? Explain.
  • How can sampling issues impact validity of design, in other words how can sampling threaten validity?
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Answer #1

# Yes we can use many methods at the same time it is called multi sampling and it is based on our objectives of the research. Sometimes we start with random and then to make our sampling more data oriented we can choose quota sampling or any other method to reach at the desired sample.Sometimes we adopt both quantitative and qualitative approaches or two surveys in one research so we can adopt two types of sampling methods.

# Sampling is a threat to external validity

-Bias that occurs when a non-representative sample is obtained from imperfect selection techniques

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