Moms often get the short end of the stick when it comes to parenting. After all, we know that dads are happier than moms and that moms do the equivalent of a full-time job's worth of work around the household, but now moms also have something they can claim bragging rights too. According to new research, moms get the credit for their children's brain power, so now every time dads try to take credit for their children's good grades, moms can set them straight!
Psychology Spot reports that "mothers are mainly responsible for transmitting intelligence genes" which means that when your little one comes home with their amazing report card, moms get to give themselves a little pat on the back for giving their child a genetic boost. One scientific researcher named Robert Lehrke revealed that it is the x chromosome that determines a child's intelligence. Women carry two x chromosomes while men only carry one, which means that "since women have two X chromosomes, they are twice as likely to transmit characteristics related to intelligence."
Psychology Spot also looked at other research on the determination of intelligence in children and found that "the best predictor of intelligence was the IQ of the mother." They looked at a study done out of Scotland that looked at almost 13,000 children over the course of a number of years, and the most consistent determination of intelligence despite factors like race, socioeconomic status and level of education was the IQ of the mother, with the children's IQ varying only 15 points from that of their mom.
Of course, intelligence isn't all credited to gene inheritance. Forbes magazine writes that the reason smart children are born to smart mothers is because of the influence mothers have on their children. "So long as mothers are the primary caregivers, they are also the primary architects of their child’s environment during the period of critical brain development. Smart mothers tend to raise smart children. Raising children to be good problem solvers is itself a problem to be solved, and mothers with better brains are likely to do a better job of it."
Dads shouldn't feel too left out; scientists also report that only 40%-60% of intelligence inherited and that traits like intuition and emotions, which tie into intelligence, are inherited from dad, Reader's Digest reports. While moms may be responsible for transmitting their intelligence to their child, it's always important to help cultivate that intelligence as a child grows with both parents being supportive and nurturing.