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I am an undergraduate student in China, majoring in chemistry. I am now considering which advisors would be most suitable for my future research.

Actually, I have been working in a professor's lab since over a year at my university and I am interested in their research topics. What concerns me is that he recruits many students. He is the only professor in our group with over 10 graduate students, expected to increase to 14–16 students next year (depending on whether I join this lab). I am hesitant because I unsure whether he would have the time to provide me guidance with so many students.

How many students are typical for a professor?

[EDIT]

Our group typically hosts 1-2 undergraduates per year.

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    Regardless of what is typical, it seems like the real question should be: how well does this particular advisor handle that number of students? I would suggest that you talk with his current students and ask what their experience has been. – Nate Eldredge Mar 25 '17 at 15:51
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    @NateEldredge I will try to talk with them, Thanks for your advice. – Chao Song Mar 25 '17 at 17:33
  • I have seen professors in Germany work with a huge flock like this. The U.S. is very different. Nate is right -- the absolute number is less important than the student experience. Make sure to talk with both the high flyers and the less hot-shot students as well. – aparente001 Mar 26 '17 at 3:08
  • I do not think asking around will give you enough info, as the replies may be strongly biased. I recommend you search for another lab. I shall elaborate on my answer. – Scientist Jul 4 '18 at 14:23
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    @Scientist Our college, undergraduate is very less, average less than 2 per group. Our group have 1-2 undergraduates per year. They seldom "supervised" by PI, but graduate student. They do much less work than graduate student s, and their work is not important, like reproduce some experiment result for learning. – Chao Song Jul 5 '18 at 16:38
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I have worked as a postdoctoral fellow in China for two years. My experience was mainly with two institutions -- CAS/Beijing and SCAU/Guangzhou --, but I have visited a few others informally. Thus I write here from my experience as a visiting scholar.

My impression is that the academia in China is strongly pressed to produce papers, and that all sorts of strategies are being employed by opportunistic PIs in face of the prospect of large short-term gains and fast career ascension. Most labs I have visited were crowded, and working 12/7, managed by 1-2 PIs only intermittently present. There is a growing interest in hiring external postdocs, where institutions are competing in salary conditions (often not met).

At the CAS I worked in a lab with many students, each working on different projects in diverse topics. Whilst the local PI had a strong physical presence and held constant meetings, all students complained they were being demanded for results without any actual support nor apprenticeship. The numerous students were also demanded to manage the PI's paperwork, post deliveries (most not work-related), peer-reviews, and paper submission steps. Often on Sundays. At one period that lab had 18 students sharing the same 2-room apartment, payed from their salary... to the PI.

I heard such lab situations are quite common currently, and that fitted with my witnessing of crowded labs. I do not think this local practice is academically nor scientifically healthy.

Therefore my main advice is that you search for a more balanced laboratory, perhaps considering a different culture / location towards a more solid, sane formation. If you find yourself in a bad place, don't play their game and leave it at once.

Good luck!

UPDATE:

I just realised I did not answer your question objectively. The best labs I have dealt with had ca. 3-5 students per professor, most of them are typically Master students. Postdocs are independent and may assist in tutoring students, writing papers; I have seen well-reputed labs with up to 4 postdocs under the same supervisor.

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It depends on many factors:

  • Does the professor have any intense other duties like teaching, committee work, own research, being an editor, writing grants, etc. or can they focus on supervising?

  • Does the professor delegate supervisory work, e.g., do PhD students have postdocs or similar as a first person to go to?

  • Is there a healthy communication and collaboration within the group? Is everybody roughly informed what everybody else’s areas of expertise are so they can seek help (e.g., from the resident programming expert) directly without going through the supervisor? Is this encouraged by the supervisor?

  • How much supervision does a typical student in your field require?

  • How efficient is the professor in supervising?

Due to these factors, the group size you mention can work very well, but may also be a total disaster. As it’s impossible to judge these factors as an outsider, the best way is to talk to actual supervisees and look at the graduation statistics of the group (if available). If you are actually working in a professor’s group, you should be able to assess this better than anybody else.

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