I would like to point you to (and encourage a search of your questions or your company): https://www.1point3acres.com/bbs/ . This is probably the largest board out there that shares interview questions (and answers!), techniques, approaches, etc... including leaks of questions, "help" from insiders at large companies, and more. If you seem to suspect that there is some sort of nation-based component to your Chinese interviewees doing quite well, I suspect you may find your study is poisoned and I recommend a redo. As an American, I have not found something similar to 1p3a in terms of the wealth of information available for getting recruited at large companies.
1p3a isn't the only one out there either. There are many more. This is just the one I've been able to hear coworkers and students when I was in undergrad talk about a lot.
I hadn't heard about that specific board, but I'm certainly aware that students frequently collaborate in various public and private ways. It's definitely true that my company would be a prominent target, so we take various measures to try to defend against preparation like this.
For clarity, I didn't mean to imply that I had done a formal study. I'm just reporting my personal experience.
Editing to add: I'm really interested in other people's experience, too! I'm honestly curious how this person got the idea that the college grads do not know the fundamentals well. Maybe they're testing fundamentals in a way I'm not and I can learn.
Technical interviews are manufactured tests that can be easily gamed. The idea that any valuable insight can be drawn from them is naïve at best. Further, the post was specifically about innovation -- given this constraint, technical interviews are notoriously bad at separating the wheat from the chaff (e.g. product questions are non-existent in technical interviews).
"Fundamentals" can mean different things to different people, but let's not pretend technical interviews are a reliable signal.
The parent's anecdotal experience is still a valuable datapoint in the face of two baseless stereotypes:
1. Chinese educated people lack fundamentals and are ill equipped for innovation
2. Technical interviews are at best a naive mechanism for evaluating candidates
Because I have plenty of evidence for all of the above, and the fact that technical hiring is profoundly broken is discussed ad nauseam on HN.
However, an academic culture that doesn't see anything wrong with cheating will mean their average cohort of students have a much weaker understanding of fundamentals compared to average students from a country that doesn't tolerate that.
I've seen absolutely zero evidence for your view that "a generation" of Chinese students has graduated with "weak understanding of the fundamentals" compared to Americans.
I'm happy to discuss further (surely my interviews are imperfect tests and the samples are biased in some ways), but let's ground the discussion in evidence. Where did you get this idea?