Learn about planning experiments and variables when working scientifically with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.

KEVIN A. CLARKE, The Phantom Menace: Omitted Variable Bias in Econometric Research, Conflict Management and Peace Science, Vol. 22, No. 4, SPECIAL ISSUE: Model Specification and Control Variables ...

The present study addressed an important issue in scientific reasoning and cognitive development: how children acquire a domain-general processing strategy (Control of Variables Strategy or CVS) and ...