IMRaD paper

The main difference between IMRaD papers and the papers we write in class is the way the information in the paper is presented.  In argument papers, the author presents a claim or thesis then backs that up with evidence in different paragraphs.  In IMRaD papers, the author is analyzing an experiment.  The author summarizes the experiment in an abstract then presents the information in a clear organized fashion.  These papers aren't claiming anything, just presenting the information.