| ÉLEM | Longitudinal and Experimental Study of Low SES Boys in Montréal (ÉLEM) | |
| ÉJNQ | The Québec Study of Newborn Twins (QSNT) | |
| ÉLEMQ | The Quebec Longitudinal Study of Kindergarten Children (QLSKC) | |
| ELNEJ | National Longitudinal Survey of Children and Youth (NLSCY) | |
| ÉLDEQ | "In 2002... I will be 5 years old!" The Quebec Longitudinal Study of Child Development (QLSCD 1998-2002)" | |