Currently there are debates about whether instruction on how to use library systems is necessary, or if efforts are better spent making systems easier to use so that they require no instruction. A particular study published in the Journal of Academic Librarianship indicates that the most predominant model of teaching information literacy, the one-shot session model, is ineffective and doesn't really make a perceptible difference in the grades of the students. However the same study also indicated that students who attended a longer class with a library instruction session scored significantly higher, indicating that it may not be the idea of the instruction that is flawed, but rather the method.[10]