Valid and reliable instruments are required to appropriately study perfectionism. With this in mind, three studies are presented that describe the development and initial validation of a new instrument designed to measure multidimensional performance perfectionism for use in sport (Performance Perfectionism Scale--Sport [PPS-S]). The instrument is…

Problem Statement: The sense of belonging to school can be described as the perception of students as individuals, respecting their existence, and supporting them in the social environment of the school. Academic achievement is a factor that is related to the sense of belonging to school. In many studies the direct link was revealed between sense…

The present study investigated the nomological validity of the Amotivation Inventory-Physical Education (Shen, Wingert, Li, Sun, & Rukavina, 2010b) scores by examining the associations of ability, effort, value, and task characteristics amotivation beliefs with self-determination theory variables. Data were collected from 401 fifth- and…