School Board Testimony: Weighing Survey, Review, and Anecdote
A seventh-grade civics class is preparing two-minute testimony for a school board meeting about a proposed phone-free policy. The class has three sources. Source A is a district survey of 412 students conducted during the week of a lockdown drill; 68% said phones distract them in class. Source B is a 2023 peer-reviewed review of 12 studies; it reports a small negative correlation between in-class phone use and test scores but notes that the studies measured phone use differently. Source C is a parent blog post with 14 comments; one comment says, 'Every teacher I know says phones ruin focus.' The board has asked for claims supported by the strongest evidence, and the class must avoid overstating what the research shows. The teacher requires each testimony to name one limitation of the evidence and to explain why the group did not use at least one source.
1. Which source best supports the claim that a phone-free policy will improve grades, and what can the class responsibly claim?
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Source B is the strongest source, but it does not prove that a phone-free policy will improve grades. A peer-reviewed review of 12 studies carries more weight than one district survey or a blog comment. Still, the review reports a small negative correlation between in-class phone use and test scores. Correlation is not causation: students who use phones more may differ in other ways, and the studies measured phone use differently. Source A shows perceived distraction, not grades. Source C is anecdotal. A responsible claim is: 'A 2023 review of 12 studies found a modest association between in-class phone use and lower test scores, which suggests a phone-free policy could help, but the evidence does not prove it will raise grades.' That wording uses the strongest source without overstating its design.
2. Explain why the timing of Source A matters and how it limits using the 68% figure.
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The survey was conducted during a lockdown drill week, which can prime safety concerns, stress, and distraction. Students answering then may report more distraction than they would in a typical week. The 68% figure therefore describes perceptions during an unusual period, not ordinary classroom conditions. The survey is also self-reported and does not link phone use to learning outcomes. Without a baseline or a typical-week comparison, the class cannot treat 68% as a stable estimate of how distracted students usually are. A better use of Source A is to say that many students reported distraction during that week, while acknowledging that the timing may have inflated the number. That limitation should be named in the testimony rather than hidden.
3. The class must name one limitation and explain why it did not use Source C. Draft that part of the testimony in two or three sentences.
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One limitation of the research is that the 12 studies measured phone use differently, so the size of the effect is uncertain. We did not rely on the parent blog because it has no named author, no date, and its claim rests on a single comment; anecdotes can illustrate concern but cannot establish a pattern. A district survey would be stronger if it were conducted during a typical week and linked responses to outcomes. This draft meets the teacher's requirements because it names a limitation of the strongest source and gives a reasoned rejection of the weakest source rather than simply ignoring it. It also keeps the testimony within two minutes by focusing on evidence quality instead of listing every source.