๐Ÿ”— The Science Behind Those Obama Campaign E-Mails – Businessweek

The Science Behind Those Obama Campaign E-Mails โ€“ Businessweek โ€œWe did extensive A-B testing not just on the subject lines and the amount of money we would ask people for,โ€ says Amelia Showalter, director of digital analytics, โ€œbut on the messages themselves and even the formatting.โ€ The campaign would test multiple drafts and subject linesโ€”often as many as 18 variationsโ€”before picking a winner to blast out to tens of millions of subscribers....