Crisis communications isn't something most money managers practice very often. Well, I guess if they did, they probably wouldn't continue to manage money very long. But last week's market volatility was a great crisis communication "pop quiz" for investment managers. In case you failed the test, or if you just want to boost your score with investors, here are some tips for effectively communicating with investors and prospects during a crisis, whether it's market-driven or created by personnel, regulatory bodies, service providers, or litigation. Communicating effectively during a crisis can make or break a business, so study up and ace the next test.