<h1>&nbsp;</h1> <div class="toc-about clearfix"> <h1><a href="http://many.at/links2tabs" class="header">Psychology - психологія 心理学 psychologie 心理學 ψυχολογία psychologia मनोविज्ञान pszichológia உளவியலாளர்கள் psicologia మానసిక నిపుణులు 심리학 psykologi tâm lý học psikoloji психология psicólogos علم النفس psicología פסיכולוגיה</a></h1><p>References 1 - 10 for Are elementary school start times too early for young children?</p> </div><!-- class="about clearfix" --><h1>&nbsp;</h1> <div id="mysitesnoframes" class="sites_content"><ul> <li><a rel="nofollow" href="http://phys.org/tags/school/" ><img src="/wp-content/images/icons/32/globe2.png" width="32" height="32" /><strong>[1] school</strong>phys.org</a></li> <li><a rel="nofollow" href="http://phys.org/tags/performance/" ><img src="/wp-content/images/icons/32/globe3.png" width="32" height="32" /><strong>[2] performance</strong>phys.org</a></li> <li><a rel="nofollow" href="http://phys.org/tags/standardized+test+scores/" ><img src="/wp-content/images/icons/32/globe4.png" width="32" height="32" /><strong>[3] standardized test scores</strong>phys.org</a></li> <li><a rel="nofollow" href="http://phys.org/tags/students/" ><img src="/wp-content/images/icons/32/globe5.png" width="32" height="32" /><strong>[4] students</strong>phys.org</a></li> <li><a rel="nofollow" href="http://phys.org/tags/academic+performance/" ><img src="/wp-content/images/icons/32/globe6.png" width="32" height="32" /><strong>[5] academic performance</strong>phys.org</a></li> <li><a rel="nofollow" href="http://phys.org/tags/high+school+students/" ><img src="/wp-content/images/icons/32/globe7.png" width="32" height="32" /><strong>[6] high school students</strong>phys.org</a></li> <li><a rel="nofollow" href="http://phys.org/news/2014-06-early-elementary-school-tougher-economically.html#inlRlv" ><img src="/wp-content/images/icons/32/globe8.png" width="32" height="32" /><strong>[7] Early elementary school start times tougher on economically advantaged...</strong>phys.org</a></li> <li><a rel="nofollow" href="http://phys.org/partners/university-of-kentucky/" ><img src="/wp-content/images/icons/32/globe9.png" width="32" height="32" /><strong>[8] University of Kentucky</strong>phys.org</a></li> <li><a rel="nofollow" href="http://www.uky.edu/" ><img src="/wp-content/images/icons/32/globe10.png" width="32" height="32" /><strong>[9] website</strong>uky.edu</a></li> <li><a rel="nofollow" href="https://sciencex.com/profile/?code=favnid=328257306" ><img src="/wp-content/images/icons/32/globe11.png" width="32" height="32" /><strong>[10] add to favorites</strong>sciencex.com</a></li> </ul></div> Your browser does not handle frames, which are required to view the sites in tabs. Please upgrade to a more modern browser.<br /><br />