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Detailed feedback about statistics in a critical review Michael McCarthy says: This paper by Amrhein et al. The example concerns a woman who is carrying twins, both male as determined by sonogram and we ignore the possibility that gender has been observed incorrectly.
The parents-to-be ask Efron to tell them the probability that the twins are identical. Read full report This paper by Amrhein et al.
This is my first open review, so I'm not sure of the protocol. But given that there appears to be errors in both Efron b and the paper under review, I am sorry to say that my review might actually be longer than the article by Efron athe primary focus of the critique, and the critique itself.
I apologize in advance for this. To start, I will outline the problem being discussed for the sake of readers. This problem has various parameters of interest. The bone of contention in the Efron papers and the critique by Amrhein et al.
The paper by Amrhein et al. Apparently, the doctor knows that one third of twins are identical 2. Now, what would happen if we didn't have the doctor's knowledge?
In contrast, Amrhein et al. No one is violating logic — they are merely expressing ignorance by specifying equal probabilities to all states of nature. Whether this is philosophically valid is debatable Colyvanbut this example does not lend much weight to that question, and it is well beyond the scope of this review.
Now the problem has two aspects that are uncertain. Uncertainty in the state of x refers to uncertainty about this particular set of twins.
A key point is that the state of one particular set of twins is a different parameter from the frequency of occurrence of identical twins in the population.
Alternatively, Efron b notes another alternative for an uninformative prior: Here I disagree with Amrhein et al. Although there is one data point a couple is due to be parents of twin boys, and the twins are fraternalEfron does not use it to update prior knowledge.
The data about the twin boys is not useful by itself for this purpose — they are a biased sample the data have come to light because their gender is the same; they are not a random sample of twins. Further, a sample of size one, especially if biased, is not a firm basis for inference about a population parameter.
While the data are biased, the claim by Amrheim et al. However, the data point the twins have the same gender is entirely relevant to the question about the state of this particular set of twins.
And it does update the prior. This updating of the prior is given by equation 1 above. This possible confusion between uncertainty about these twins and uncertainty about the population level frequency of identical twins is further suggested by Amrhein et al.
Third, we find it at least debatable whether a prior can be called an uninformative prior if it has a fixed value of 0. Therefore, both claims in the quote above are incorrect. It is probably easiest to show the lack of influence of the prior using MCMC sampling.
However, given the biased sample size of 1, the posterior distribution for this particular parameter is likely to be misleading as an estimate of the population-level frequency of twins.Peer review is one of the most effective strategies for revising an essay.
The most persuasive writers use suggestions from their peers to improve their essays. Conducting Peer Reviews. For further information see our handout on How to Proofread..
Before you read and while you read the paper. Find out what the writer is intending to do in the paper (purpose) and what the intended audience is.
Grammarly makes sure everything you typeWrite anywhere · Easily improve any text · Detect plagiarism · Eliminate grammar errorsGrammarly quickly and easily makes your writing better. – ashio-midori.com How to Write a Peer Critique.
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Not only can performing a peer-review earn you bonus points for some class projects, but it will also improve your paper! This page contains a bunch of guidelines and tips for doing a great job on a peer-review.
My Dashboard; Pages; Sample Essay 1 Peer Review Response & Grading Expectations; Fall Home; Modules; Syllabus; Quizzes; Assignments; Library; Academic Success. Reviewing is a good way to keep up with literature and sharpen your own writing, says Brian Lucey. Photograph: Ian Waldie/Getty Images 1) Be professional. It's called peer review for a reason. You. on the peer review process, a defining fea-ture of scientific discourse that subjects the literature forming the foundation of cred- After this first pass, write the first two paragraphs of your review, which will sum-marize the research question addressed and the contribution of the work. If the jour-.
Paraphrase the essay's argument as you believe the author intended. Peer review is one of the most effective strategies for revising an essay. The most persuasive writers use suggestions from their peers to improve their essays. Aug 19, · Edit Article How to Write a Peer Review Report.
Two Parts: Reading the Manuscript Drafting Your Reviewer Report Community Q&A The peer review process is crucial in academic publishing. As a reviewer, you will objectively read the manuscript and provide your expert opinion about whether it is appropriate for publication%(13).