Do most people go to different schools for BS, MA, and Ph.D?

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In some fields, it is common (and beneficial). In others, it is highly inadvisable.</p>

<p>I can tell you that, in electrical engineering/comp sci, for instance, there are many such MIT “lifers,” students who received all their EECS degrees from one institution (and they become ultimate lifers if they then work or teach at MIT). However, as awesome as MIT is (in general, and in the biological sciences), and as much as I would have loved to stay for grad school, every single professor I talked to strongly recommended that I, as posters above have put it, broaden my horizons. Because of what we were advised, I do not know a single MIT biology undergrad accepted to MIT Biology for grad school who decided to stay. In fact, part of the motivation for students to attend grad school elsewhere is a raised bar for admission for MIT undergrads; the grad department used to not even accept its own undergrads at all.</p>

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I know I did. But some people might find a same-city institution to be the best fit for them, be restrained geographically by significant others, or both.</p>