research methods

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Last updated 9:01 PM on 5/3/26
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<p>explain why stratified sampling might improve this study. 2 marks</p>

explain why stratified sampling might improve this study. 2 marks

  • increases representation/generalisation by sampling many subsets of students

  • reduced researcher bias as the subsets of students are selected randomly

  • increases external validity by sampling many subsets if students