This example illustrates how internal beliefs determine emotional outcomes following an event. When faced with a failed test, an individual who internalizes the belief 'I'm worthless and stupid' may develop depression. Conversely, an individual who thinks 'I'm smart, but I didn't study for this test. I can do better' is less likely to become depressed. This highlights the core cognitive principle that one's interpretation of an event, not the event itself, is the primary cause of emotional distress.