Before using the survey as evidence, the writer would need to determine:
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The credibility of the source: It's important to assess who conducted the survey and whether they are a reputable organization or institution. This includes evaluating the methodology used in the survey to ensure it was conducted in a reliable and unbiased manner.
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The sample size and demographics: The writer should check the sample size and demographics of the survey respondents to ensure that the findings are representative of the general population or the specific population relevant to the argument (e.g., parents, teachers, or students). A small or biased sample could lead to misleading conclusions.