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The nature of the association between number line and mathematical performance: An international twin study

Author/s: 
Maria Grazia Tosto
Gabrielle Garon-Carrier
Susan Gross
Stephen E. Petrill
Sergey Malykh
Karim Malki
Sara A. Hart
Lee Thompson
Rezhaw L. Karadaghi
Nikita Yakovlev
Tatiana Tikhomirova
John E. Opfer
Michèle M. M. Mazzocco
Ginette Dionne
Mara Brendgen
Frank Vitaro
Richard E. Tremblay
Michel Boivin
Yulia Kovas
Year of Publication: 
2018
Publisher: 
British Journal of Educational Psychology
URL: 
https://onlinelibrary.wiley.com/doi/full/10.1111/bjep.12259

This study investigated the genetic and environmental sources of individual differences in estimation of numerical magnitudes on a number line task, and of the covariation between number line estimation and mathematics measures of fluency and problem‐solving. It further explored genetic and environmental contribution to sex differences in estimation of numerical magnitudes and in mathematics.

APA Citation: 

Tosto, M. G., Garon‐Carrier, G., Gross, S., Petrill, S. A., Malykh, S., Malki, K., Hart, Thompson, Karadaghi, R., Ykovlev, N., Tikhomirova, T., Opfer, J., Mazzocco, M. M. M., Brendgen, M. Vitaro, F., Tremblay, R.E., Boivin, M, & Kovas, Y. (2018). The nature of the association between number line and mathematical performance: An international twin study. British Journal of Educational Psychology. https://doi.org/10.1111/bjep.12259