@article{Chiu2007,
author = {Chiu, M.M.},
title= {Families, economies, cultures, and science achievement in 41 countries: Country-, school-, and student-level analyses},
year = {2007},
doi = {10.1037/0893-3200.21.3.510},
volume = {21},
number = {3},
pages = {510--519},
}