Bella doesn't believe in cheating on school work, but then she took a Spanish test and everyone else was cheating, so she did it, too. Now, she tells herself that cheating is usually bad, but sometimes it is O.K. This is an example of:

Question

anonymous · Answer

It's called "cognitive dissonance." 

Sometimes, the things that we believe don't really match up with what happens, in real life. 

Bella believed that cheating was bad. 
But in real life, she ended up choosing to cheat. 

"Cognitive dissonance" is where the reality doesn't match with our attitudes. 
And so, we change our attitudes, to match reality.