{"id":86027,"date":"2018-11-23T10:56:23","date_gmt":"2018-11-23T15:56:23","guid":{"rendered":"https:\/\/allpsych.com\/?p=1825"},"modified":"2021-05-04T02:59:50","modified_gmt":"2021-05-04T02:59:50","slug":"do-early-developmental-milestones-predict-intelligence-in-middle-age","status":"publish","type":"post","link":"https:\/\/allpsych.com\/do-early-developmental-milestones-predict-intelligence-in-middle-age\/","title":{"rendered":"Do Early Developmental Milestones Predict Intelligence in Middle Age?"},"content":{"rendered":"<p align=\"left\">Will a baby who says their first words at a precocious age go on to have a sharp mind at 50? The idea that signs of future intelligence can be spotted in toddlerhood sounds logical enough, but the strength of the correlation between infant behavior and adulthood intelligence remains up for scientific debate.<\/p>\n<p align=\"left\">Recently, a pair of researchers in Copenhagen, Denmark studied this question in exactly the way you might expect: they observed the developmental progress of several thousand babies, then they followed up with those babies fifty years later, administering IQ tests.<\/p>\n<p align=\"left\">In their paper, titled <a href=\"https:\/\/doi.org\/10.1111\/bjdp.12271\" target=\"_blank\" rel=\"noopener noreferrer\">Language Development and Intelligence in Midlife<\/a>, the researchers describe how they gathered data on when the infant study participants met several different developmental milestones.<\/p>\n<p align=\"left\">Some of those milestones had to do with language. For example, &#8220;the child can name a few familiar objects or animals in pictures with their true names&#8221; occurred at 18 months on average. Other milestones were considered markers of social development. For instance, &#8220;the child can build a tower of 4-5 ordinary, rectangular blocks&#8221; took place at 20 months on average.<\/p>\n<p align=\"left\">So did the age at which children reached these developmental milestones predict their later intelligence scores? Yes, but only to an extent.<\/p>\n<p align=\"left\">The researchers found that the language milestones explained about 7 percent of the variance in participants\u2019 midlife IQ scores while the social milestones explained about 3 percent of the variance. In other words, there does seem to be a real correlation between developmental accomplishments in infancy, but it\u2019s not necessarily a dramatic one. Moreover, these numbers come from averaging data collected from thousands of children \u2013 they certainly don\u2019t warrant saying that a given child is destined to become a genius because he or she can say &#8220;dog&#8221; and &#8220;cat&#8221; at the age of 12 months.<\/p>\n<p align=\"left\">Of the different milestones included in the study, the researchers identified three that were especially closely tied to adult intelligence: saying the names of objects and animals in pictures, stringing multiple words together to form \u201csentences,\u201d and sharing descriptions of personal experiences. As the researchers point out, all three of these milestones have to do with language, suggesting that language milestones might be the most predictive of later intelligence.<\/p>\n<p align=\"left\">While the relatively small correlation between language milestones and midlife IQ suggests that many other factors are involved in predicting adulthood cognitive abilities, the correlation is nonetheless large enough to indicate that early language milestones shouldn\u2019t be ignored.<\/p>\n<p align=\"left\">In fact, the findings are consistent with the idea that parents who spend time developing their children\u2019s language skills put their children at a significant advantage for the rest of their lives. This study leaves plenty of questions about where intelligence comes from unanswered, but it does suggest, in the words of the researchers, that there are &#8220;lifelong consequences of early language and cognitive development.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Will a baby who says their first words at a precocious age go on to have a sharp mind at 50? The idea that signs of future intelligence can be spotted in toddlerhood sounds logical enough, but the strength of the correlation between infant behavior and adulthood intelligence remains up for scientific debate. Recently, a&hellip;<\/p>\n","protected":false},"author":3,"featured_media":87584,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[66,112],"tags":[],"aioseo_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.7.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Do Early Developmental Milestones Predict Intelligence in Middle Age? - AllPsych<\/title>\n<meta name=\"description\" content=\"Will a baby who says their first words at a precocious age go on to have a sharp mind at 50? 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