Omar’s School-Garden Research: Credibility and Ethical Use of Sources
A Grade 8 student, Omar, is researching the question “Do school gardens improve students’ attitudes toward vegetables?” He finds three sources. Source A is a 2021 peer-reviewed study in a nutrition journal; it followed 180 students in 12 schools and found that garden participants reported a 15% increase in willingness to taste vegetables, but the authors caution that the study was short and did not measure long-term diet. Source B is a blog post by a company that sells garden kits; it says, “School gardens make kids love vegetables-100% success!” Source C is a local news article that summarizes Source A but includes only the positive 15% result and omits the caution. Omar plans to write: “Research proves school gardens make all kids love vegetables.” He also wants to copy a sentence from Source A because it sounds professional.
1. Rank the three sources from most to least credible for Omar’s research question and justify your ranking using details from the setup.
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1. Source A (peer-reviewed study). It is the most credible because it is peer-reviewed, reports a sample (180 students in 12 schools), gives a specific result (15% increase in willingness to taste vegetables), and includes the authors’ own caution about short duration and no long-term diet measure. Those limitations do not make it useless; they define what the evidence can support.
2. Source C (local news article). It is less credible than A because it is secondary and omits the caution, reporting only the positive 15% result. It can be useful as a sign that the study exists or for a local angle, but Omar should not rely on it for a balanced summary. Its selectivity is a bias signal.
3. Source B (garden-kit company blog). It is least credible for this question. The company sells garden kits, so it has a financial interest in positive results. It makes an absolute claim (“100% success”) without data, sample size, or methods. That does not prove the claim false, but it is not reliable evidence. Omar should not use it as proof; at most, he could note it as an example of promotional claims.
2. Revise Omar’s sentence “Research proves school gardens make all kids love vegetables” so it accurately reflects the evidence. Then explain how he should use Source A without plagiarizing.
Read the worked answer
Revised sentence: “One short-term study of 180 students in 12 schools found that school-garden participants reported a 15% increase in willingness to taste vegetables, but the authors caution that the study did not measure long-term diet.”
Why revise: The original uses “proves,” which is too strong for one short study; “all kids” overgeneralizes from 180 students; and “love vegetables” exaggerates “willingness to taste.” The revision keeps the specific number and sample, and it includes the limitation. It does not claim more than the source supports.
Avoiding plagiarism: Omar should paraphrase the study in his own words and cite it (author, year, and title or journal). If he uses an exact phrase, he must put it in quotation marks and cite it. He should not copy the sentence he thinks “sounds professional,” because copying without quotation marks is plagiarism even if he changes a word or two. He should also keep his own analysis separate from the source’s findings, for example: “This suggests gardens may help in the short term, but more research is needed on lasting habits.”