Although research has established that feelings of not mattering are associated with distress, the factors and processes that contribute to these associations have not received much consideration. The current study was conducted to address three themes. First, mattering was evaluated from a motivational perspective by examining mattering and…

In the current article, we describe the development and validation of the Mistake Rumination Scale as a supplement to existing trait and cognitive measures of perfectionism. The Mistake Rumination Scale is a seven-item inventory that taps the tendency to ruminate about a past personal mistake. Psychometric analyses confirmed that the Mistake…

Teachers' ratings of children's competencies may in part reflect characteristics and perspectives of teachers who assigned the ratings, which compromises their validity as a measure of child attributes. The purposes of this study were to use multilevel modeling to (a) estimate between-rater variance in teachers' ratings of children's social…