<p>Quite frankly, I’m not really sure how an undergrad in my field would earn a first authorship. It would have to be a combination of sheer excellence and luck.</p>
<p>The excellence would come in from being bright and ambitious enough to 1) know what publication is, and how important it is, early enough to pursue one, 2) start doing research early enough to work your way into a position in which you could petition to publish, and 3) come up with an original idea on which to work with your professor. In some fields, you’d also have to have the requisite statistical/mathematical/computational analysis skills to analyze the data. I was an ambitious undergrad myself who started doing research in my sophomore year, but I’d say I was not prepared for independent research work until my senior year of college. If you started doing scientific research in high school, you could be ready earlier.</p>
<p>The luck comes in with the data. You have to join a lab that is in the appropriate data stage for you to publish something - as in, mostly collected and ready for cleaning and analysis. in my field, the cleaning and analysis stage can take several months in and of itself - an entire semester, perhaps. The undergrad who joins a psychology lab at the beginning of data collection in the beginning of his or her junior year probably wouldn’t see enough data collected to do analyses until MAYBE the end of his or her junior year, or the beginning of senior year. If you joined earlier, or your lab was further along in the process, perhaps you’d have enough - but then you probably wouldn’t be involved enough in the project to be first author except in the former case.</p>
<p>If you do have a summer to devote full-time to working on a project, and your PI has a project in the appropriate place, if you work quickly you could probably have something ready to submit between the end of the summer and the end of the year.</p>
<p>Undergraduate theses do count as research experience, depending on the kind you did. In my field you had to design and execute a psychological study, and it certainly counted as research.</p>
<p>Most people come out of undergrad without any publications, and the vast majority of people admitted to PhD programs (even in the STEM fields) don’t have one. Think about it like sprinkles on a cupcake - definitely can enhance the taste, but not required. I think how much a publication can balance out a mediocre GPA depends 1) on how bad the GPA is and 2) how good the publication is, and what journal it was published in.</p>
<p>I think reading widely in a field is what graduate school is for. Your job as an undergrad is to grasp the basics: the basic knowledge you need to build upon in your field and the basic process of scientific research. Graduate school is 5-7 years of reading, reading, reading the literature in your field. Not that you shouldn’t read at all in your spare time if you have it, but your focus should be on providing a foundation for yourself.</p>