Project Gutenberg's Nazi Conspiracy and Aggression (Vol. I), by Various This eBook is for the use of anyone anywhere in the United States and most other parts of the world at no cost and with almost no restrictions whatsoever.
The first and foremost source of self-efficacy is through mastery experiences. However nothing is more powerful than having a direct experience of mastery to increase self-efficacy. Having a success, for example in mastering a task or controlling an environment, will build self- belief in that area whereas a failure will undermine that efficacy.