Copyright
All rights of material on these pages are reserved by the Department of Educational Sciences, Middle East Technical University and cannot be reproduced without permission from the Department of Educational Sciences, Middle East Technical University. It may be downloaded and printed for personal reference, but not otherwise copied, altered in any way or transmitted to others (unless explicitly stated otherwise) without the written permission of the Department of Educational Sciences, Middle East Technical University. Hypertext links to other Web locations are for the convenience of users and do not constitute any endorsement or authorization by the Department of Educational Sciences, Middle East Technical University.
 

Credits
This site was first developed by Nedim Toker untill 2003 and later developed by Mehmet Ali Icbay. This version is the 5th version after receiving the comments about the previous web sites.