“…Findings across four articles suggest that these elements can definitely be affected by the type of PM system, either positively or negatively. For example, in three laboratory experiments, Song, Sommer, and Hartman (1998) showed that modifying PA to include intergroup behavior explicitly (and an external supervisor as evaluator) led to more helping behavior and more positive attitudes toward cooperating; and Wang (2007) found that a new approach to evaluating teachers that relied on additional interaction, classroom observation, and feedback significantly increased the frequency of teacher collaboration and peer feedback. Conversely, some forms of PM can have negative effects on team cohesion and team effectiveness, including forced distribution systems (McBriarty, 1988) and those based on individual contributions and rewards and otherwise incongruent with a teamwork culture (Rowland, 2013).…”