“…Consequently, we would therefore expect perfectionistic strivings to be positively associated with autonomous motivation, and perfectionistic concerns to be positively associated with controlled motivation (Dunkley, Blankstein, Halsall, Williams, & Winkworth, 2000). In particular, socially prescribed perfectionism (an externally motivated form of perfectionism focused on concerns about how others evaluate one's performance; Hewitt & Flett, 1991) and perfectionist concerns over mistakes are closely related to introjected and external regulation (Stoeber, Davis, & Townley, 2013;Stoeber, Feast, & Hayward, 2009), both of which are indicators of controlled motivation (Ryan & Deci, 2000). Empirical studies have confirmed this pattern of relationships.…”