“…Conceptual disagreements and measurement imprecision may also contribute to the lack of consensus over the most appropriate theoretical framework for achievement goal theory (e.g., Elliot, 2005; Kaplan & Maehr, 2007), and whether the mastery-avoidance goals are a necessary addition (Cury et al, 2006; Easter et al, 2008; Hulleman, Rhee Bonney, et al, 2006). One way to determine which model most accurately reflects the available data is to examine the predictive and discriminant validity of model components (Barron, Brown, Egan, Gesauldi, & Marchuk, 2008). For example, if performance-approach and performance-avoidance strivings are distinct constructs, then we would expect them to be relatively uncorrelated with each other (discriminant validity) as well as to have different patterns of associations with outcomes (predictive validity).…”