Psychology; Older Children are Not Always Smarter than Their Young Sibs

In Sciences letter editors, “Psychology; older children are not always smarter than their young sibs” Authors explain what are the factors that affecting in the child intelligence in a result of the new study. First they discuss that new study in child intelligence reverse the old one that says the birth order have no effect on intelligence. According to authors, data was used in the new study to measure children’s mental ability through the family size. Next, they explain how the research did many tests to analyze the problem and make the result more robust. For example, they compared test result at two specific age points. Finally, they find that mother age has positive relationship with the child intelligence. The oldest the mother the more inelegant the child will be. The authors end their result by finding the environment and the genetic influences are the most important factors drive the child intelligence.

Psychology; older children are not always smarts than their younger sibs. (2000, May 5). Science Letter. Retrieved November 1, 2006, from lexis nexis database.