| Course | PHLT 8062 Dissertation Seminar II |
|---|---|
| Week | Week 7 |
| Paper type | Peer critique |
| Length | About 400 words, 3 pages |
| Format | Discussion reply, APA 7 citations |
| School | Walden University |
| Program | PhD in Public Health |
| Updated | October 2026 |
Free sample paper for PHLT 8062 Week 7
Week 7 Discussion: Responses to Two Classmates
Peer Critique of Two Classmates' Appraisals: Where a Prospective Concussion Cohort and a Food Pantry Survey Were Read More Generously Than Their Checklists Allow
Reply to Jordan
Jordan, I read the concussion cohort you appraised before reading your appraisal, so I could compare our judgments item by item. We agree on most of it: the exposure was clearly defined from athletic trainer reports, and outcome assessment used the same symptom inventory for all athletes. Where we part is the follow-up item. You rated it "yes" because the study was prospective. Being prospective is a design feature; it does not guarantee complete follow-up. In the paper's flow figure, 22% of concussed athletes were lost by the six-month assessment, compared with 9% of the comparison athletes, and the authors note that those lost had more severe initial symptoms. That pattern can bias the comparison toward finding faster recovery, because the athletes most likely to have persistent symptoms dropped out. Selection bias of exactly this kind arises when who remains in a study depends on both exposure and outcome (Hernán et al., 2004). The JBI cohort checklist asks whether follow-up was complete and, if not, whether reasons were described and explored (Moola et al., 2020); here the reasons were described but not explored. Would you consider rating that item "no" or "unclear," and noting it as the study's main weakness for your review?
Reply to Amara
Amara, your appraisal of the county food pantry survey is careful on sampling: the pantries were chosen randomly from a complete list, and you were right to credit that. My reading differs on response. You rated the risk of bias as low overall, but the survey's response rate was 31%, and the paper compares respondents with pantry intake records only on age and household size. Groves (2006) showed that low response rates do not by themselves produce bias, but bias appears when the reasons for not responding relate to the survey's measures. Here, the outcome is food insecurity severity, and people experiencing the most severe insecurity, working multiple jobs or without stable housing, may be least able to complete a twenty-minute survey at a pantry. That would make the survey's estimate of severe insecurity too low. Could your appraisal note this as a likely direction of bias, even if its size cannot be known? It may also be worth checking whether the authors reported any follow-up attempts with nonrespondents.
References
Groves, R. M. (2006). Nonresponse rates and nonresponse bias in household surveys. Public Opinion Quarterly, 70(5), 646-675. https://doi.org/10.1093/poq/nfl033
Hernán, M. A., Hernández-Díaz, S., & Robins, J. M. (2004). A structural approach to selection bias. Epidemiology, 15(5), 615-625. https://doi.org/10.1097/01.ede.0000135174.63482.43
Moola, S., Munn, Z., Tufanaru, C., Aromataris, E., Sears, K., Sfetcu, R., Currie, M., Lisy, K., Qureshi, R., Mattis, P., & Mu, P. (2020). Systematic reviews of etiology and risk. In E. Aromataris & Z. Munn (Eds.), JBI manual for evidence synthesis. JBI.
PHLT 8062 Week 7 instructions, in plain terms
The seventh discussion usually asks students to critique classmates' appraisals of studies from their reviews. Faculty expect each reply to be grounded in the original paper, not only in the classmate's appraisal, so reading the source first is essential. Strong replies identify the specific checklist item where the readings differ, point to evidence in the paper such as a flow figure or response rate, explain the bias it implies and suggest a revised judgment. Saying which way a bias would push the estimate makes the critique useful for the classmate's synthesis. Agreement should be acknowledged where it exists. Methods sources should support the reasoning. Tone matters: disagreements should point to the paper rather than to the classmate's competence, and each reply should end with a question.
Inside the PHLT 8062 Week 7 example
The first reply explains that the author read the concussion paper before the appraisal, notes agreement on exposure and outcome measurement and isolates the follow-up item. It cites the flow figure's differential losses and the authors' note that dropouts had worse symptoms, names the resulting selection bias with a methods source, quotes the relevant checklist question and asks whether the rating should change. The second reply credits the pantry survey's random selection of sites, identifies the response rate and limited comparison with intake records, explains with a nonresponse source why low response matters when nonresponse relates to the outcome, states the likely direction of bias and suggests checking for follow-up attempts. Each reply closes by asking something the classmate could settle by rereading the article.
Reading the PHLT 8062 Week 7 rubric
Graders reward critiques grounded in the source paper and specific to a checklist item. Replies that disagree in general terms, or critique the appraisal without having read the study, earn little. Credit goes to citing concrete evidence from the paper, explaining the mechanism of bias accurately and stating its likely direction. Acknowledging what the classmate got right shows fairness. Suggesting a revised rating and asking a question keeps the exchange constructive. Methods sources should support the specific point. Choosing a separate bias for each reply gives the thread two distinct lessons. Concise writing helps the classmate act on the critique.
PHLT 8062 Week 7 help: mistakes that cost marks
Peer critiques of appraisals often argue with the appraisal rather than the evidence. Read the original paper first. Find the checklist item where your reading differs, point to the figure or number that supports your view, and explain what bias it creates and which way it pushes the result. Credit what the classmate got right. Suggest a revised judgment and ask a question. Replies on other appraisals can follow the same paper-first method. Keep each reply focused on one item so the classmate knows exactly what to reconsider. Cite a methods source for the bias you describe, which turns an opinion into a point the classmate can check for themselves before revising.
Get a PHLT 8062 Week 7 example written to your instructions
Paste the classmate appraisals you must answer, names removed, and attach the papers they appraised with the Week 7 prompt and rubric. Each critique sets their reading beside an independent one, identifies the checklist item where they part and closes on a question. The first is free, back in 24 to 48 hours; neither the athletes nor the parents described here exist.
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PHLT 8062 Week 7 questions, answered
Why read the paper myself instead of critiquing the appraisal as written?
Because an appraisal can only be checked against its source. A critique built from the classmate's summary alone can point out inconsistencies but cannot find what the summary left out, which is usually where a misjudgment hides. The example reads both papers first, and both of its critiques rest on details the classmates never mentioned. If your thread leaves little time, read at least the methods section.
Where can I find a free PHLT 8062 Week 7 sample paper?
The full Week 7 replies are reproduced on this page, comparing two classmates' appraisals of a concussion cohort and a food pantry survey with the author's own reading of each paper.
Why read the paper myself instead of critiquing the appraisal as written?
An appraisal can only be checked against its source. Reading the study first lets you see what the classmate saw and what they may have missed, such as differential losses in a flow figure.
Does a low response rate always mean bias?
No. Bias arises when the reasons people do not respond are related to what the survey measures. A low rate is a warning sign that calls for asking who is likely missing and why.
How should I disagree without sounding dismissive?
Point to the paper rather than the classmate's reasoning, acknowledge what they got right and phrase your view as a question about a specific item and its evidence.