TY - GEN AU - Butler,Jayne AU - Adams,Raymond J TI - The impact of differential investment of student effort on the outcomes of international studies SN - 1529-7713 PY - 2007///1010 KW - Adolescent KW - Cultural Diversity KW - Educational Measurement KW - methods KW - Female KW - Humans KW - International Cooperation KW - Male KW - Policy Making KW - Reproducibility of Results N1 - Publication Type: Journal Article ER -