Valerie Knopik and Kristine Marceau, professors in the Purdue Department of Human Development and Family Science, analyzed the effects of maternal smoking on pairs of siblings within 173 Missouri families. The team wanted to see how siblings in the same family performed in executive function tasks when one was born when the mother smoked during pregnancy and the other child was born when the mother was not smoking or smoked less.<\/p>\n","protected":false},"author":8,"featured_media":5205,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[9,19],"tags":[1124,142,1344,1346,240,176,1345,1343,1331],"class_list":["post-5207","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-human-development-and-family-studies","category-research","tag-human-development-and-family-science","tag-kristine-marceau","tag-mothers","tag-pregnant","tag-purdue-university","tag-research","tag-siblings","tag-smoking","tag-valerie-knopik"],"acf":[],"yoast_head":"\n