What does research reveal about the communication patterns in successful, satisfying, long-lasting relationships versus the communication patterns in unhappy relationships that usually fail in the long run? The most informative research on communication patterns in relationships has been conducted by psychologist John Gottman and his colleagues (Gottman, 1994; Gottman & Silver, 2000; Gottman et al., 1998, 1999, 2003). They used a multimethod research model for building an extensive database drawn from many studies of married couples (see Chapter 13 for a description of Gottman’s research methods). Gottman identified a number of communication patterns that are predictive of marital happiness or unhappiness. Happily married couples resolve conflicts by using a variety of constructive communication tactics, which are described in the following section.