<p>Research internship are generally longer because you can’t get results in 1-3 weeks. Training alone can take over a week.</p>
<p>I guess I would recommend more of a class if you only have 1-3 weeks. Will still offer you research knowledge but you won’t do your own project or anything. Summer@Brown comes to mind. More of a pay to go program but probably has a class that will interest you and teach you a lot.</p>