My first shot at the WGU (GTO1, C715)  exam was really tough because I was spending way too much time reading WGU organizational behavior course materials without testing myself. Thought understanding all the behavior concepts and organizational principles would prepare me, but the exam asked about real workplace scenarios I wasn't ready for.

Grabbed itexamstopics.com PDF version and it helped a lot. Could download it and study offline whenever I had free time between classes and work. The practice questions showed me exactly what the organizational behavior exam focused on. The demo questions made it clear which topics the exam really tested. Two weeks of their focused practice and I passed on the second try. If you're getting ready for the (GTO1, C715) exam, skip the long course readings and use their PDF practice questions. Easy to carry around and covers everything about organizational behavior you need to know.