@article{ChmielewskiDumontTrautwein2013,
  author    = {Chmielewski, Anna K. and Dumont, Hanna and Trautwein, Ulrich},
  title     = {Tracking Effects Depend on Tracking Type},
  series = {American Educational Research Journal},
  volume    = {50},
  journal   = {American Educational Research Journal},
  number    = {5},
  publisher = {Sage},
  address   = {Thousand Oaks, Calif.},
  issn      = {0002-8312},
  doi       = {10.3102/0002831213489843},
  pages     = {926 -- 957},
  year      = {2013},
  abstract  = {The aim of the present study was to examine how different types of tracking— between-school streaming, within-school streaming, and course-by-course tracking—shape students' mathematics self-concept. This was done in an internationally comparative framework using data from the Programme for International Student Assessment (PISA). After controlling for individual and track mean achievement, results indicated that generally for students in course-by-course tracking, high-track students had higher mathematics self-concepts and low-track students had lower mathematics self-concepts. For students in between-school and within-school streaming, the reverse pat- tern was found. These findings suggest a solution to the ongoing debate about the effects of tracking on students' academic self-concept and suggest that the reference groups to which students compare themselves differ according to the type of tracking.},
  language  = {en}
}
@article{DumontNeumannMaazetal.2013,
  author    = {Dumont, Hanna and Neumann, Marko and Maaz, Kai and Trautwein, Ulrich},
  title     = {The effect of student body composition on academic achievement International and National Evidence},
  series = {Psychologie in Erziehung und Unterricht : Zeitschrift f{\"u}r Forschung und Praxis},
  volume    = {60},
  journal   = {Psychologie in Erziehung und Unterricht : Zeitschrift f{\"u}r Forschung und Praxis},
  number    = {3},
  publisher = {Reinhardt},
  address   = {M{\"u}nchen},
  issn      = {0342-183X},
  doi       = {10.2378/peu2013.art14d},
  pages     = {163 -- 183},
  year      = {2013},
  abstract  = {This paper reviews empirical evidence on the effect of the composition of a student body on academic achievement of students. After defining the term composition effect, methodological aspects regarding the study of composition effects are considered. International and national evidence for the composition of a student body with respect to students' abilities, social, and ethnic background is then presented. Whereas international studies find evidence for social, ethnic, and achievement composition variables, national studies reveal that mean achievement level of a school or class is the most important composition variable in Germany. However, this effect is confounded with school track and social composition, which itself exerts a small incremental effect. Ethnic composition, however, does not seem to play an important role. The paper closes with a presentation of the underlying processes of composition effects and a discussion on how the composition of a student body is considered in school governance practices.},
  language  = {de}
}