Defensive pessimism is a strategy used by anxious people to help them manage their anxiety so they can work productively. Defensive pessimists lower their expectations to help prepare themselves for the worst. Then, they mentally play through all the bad things that might happen. Though it sounds as if it might be depressing, defensive pessimism actually helps anxious people focus away from their emotions so that they can plan and act effectively.

Strategic optimism is typically used by people who aren't anxious. Individuals using this strategy set high expectations, and then actively avoid thinking much about what might happen.