There are two schools of thought on what should be included in the introduction of a full-length paper (i.e. one with defined sections for intro, methods, etc.) The first is that the introduction should set up the problem that the paper addresses. The second is that the introduction should both set up the problem and summarize the paper's findings.
I see a lot of papers in the second category these days. Many authors seem to prefer the opportunity to state their conclusions early, so the reader can make no mistake about the direction the paper is taking.
But I personally prefer the older-school style in which the introduction functions more like the start of a murder mystery, leaving the reader to consider the problem without having an answer immediately presented. It's a trope, of course, because no one on Earth reads the introduction without having first read the abstract, which has already established that it was Professor Plum in the drawing room with the pipe wrench.
But it's a nice trope, even a civilized one. It's as though the author has said, "If you care enough to read this paper start to finish, then let's lay out the groundwork of intellectual premises together, without knowing the foregone conclusions. I'll tell you how I plan to address the question, but not what I found. You can sit for a moment and think about how you might have chosen to approach the problem, or what you might expect to find, without being told my conclusions at the outset."
Besides, there are already at least two other spots in the paper where the authors have a chance to summarize their findings: in the abstract and in the first paragraph of the discussion. Do you really need another?
I understand, of course, that the goal of a paper is to persuade the readership that you've found what you claim, and that repetition of the findings can aid you in this goal, but still and all--I prefer the classic intro.
Then again, I'm still using Pine in a Unix shell to check my email, so you might just want to file this entry under Cranky Granny Jekyll.
15 years ago