If you watch another teacher successfully teach students how to design a web page and you say to yourself "if he can do it, i can do it", you are relying on experiences as a source of self-efficacy information.

Vicarious (experiences).

Explanation:

This type of experience refers to seeing another person do or repeat a behaviour, like in the example. This, if the person that looked at the behaviour has features in common (in the example both of them are teachers) will boost self-efficacy and confidence to repeat the behaviour. As in the example: teacher A does X. Teacher B sees it, and thinks he can as well. As both of them are teachers, teachers B relies on this vicarious experience to try and do the same as teacher A.

when your a dog and you need a bone.   go and eat a rabbit