The major disadvantages of this mode has basically to do with the ability of both students and teachers to adapt and integrate this method effectively. Many students are not used to working independently, creating the need to provide guidance as to the use of this kind of center, at least in the beginning. One study reports that students do not seem to want too much freedom in their use of technology. 73% reported that they preferred a regularly scheduled lab time, with the facilitative presence of a teacher. Significantly less than half reported that they preferred completely free access to the lab or to do work at home on their own computer.