Does Birth Order Affect Intelligence?


	Does Birth Order Affect Intelligence?

wiccantexan

6-21-2007 10:05 PM

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tags:

birth, children, siblings, sister, brother, iq, intelligence

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/359ef5ca-0101-4bb9-a9d1-da3223d08b3c/DFDF5A8C-97B6-4462-93E1-7C59CAD2B9D0/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.cbsnews.com/stories/2007/06/21/health/webmd/main2964494.shtml" href="http://www.cbsnews.com/stories/2007/06/21/health/webmd/main2964494.shtml" style="font-size: 11px;">www.cbsnews.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.cbsnews.com/stories/2007/06/21/health/webmd/main2964494.shtml"><DIV><B>(WebMD) </B>Birth order may modestly affect IQ scores, favoring firstborn children, according to a new study.
</DIV></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.cbsnews.com/stories/2007/06/21/health/webmd/main2964494.shtml"><DIV>The study, published in the journal <I>Science</I>, shows about a two-point gap in average IQ scores among firstborn men and men with living older siblings.
</DIV></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.cbsnews.com/stories/2007/06/21/health/webmd/main2964494.shtml"><DIV>However, an editorial published with the study points out that before age 12, younger children tend to outscore their older brothers and sisters on intelligence tests.
</DIV></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.cbsnews.com/stories/2007/06/21/health/webmd/main2964494.shtml"><DIV>"This is because the younger sibling, being linguistically and cognitively less mature, degrades the firstborn's intellectual environment, whereas the older sibling enriches the second-born's environment," writes editorialist Frank Sulloway, Ph.D., of the Institute of Personality and Social Research at the University of California, Berkeley.
</DIV></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/DFDF5A8C-97B6-4462-93E1-7C59CAD2B9D0/blog/" title="blog or email this clip"><img src="http://content6.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>