doesnt environment, <br>Child parenting, <br>Mentors, <br>Finances, <br>toxicity entering the body that affects brain development such as lead or heavy metals<br>abuse, <br>rape, <br>fear <br>and the list goes on that affects IQ?<br><br>Memorizing is a skill you can learn. <br>Teachers would always tell their students that it was wrong or didnt work. thats what i was told. <br>then they would say..some people that can understand that an only memorize are not smart or have a high IQ.<br>so the student never learns how to recall data.<br>While the parents with money, financially ok to  teach or hire tutors would say it does and they learn how to peg memories or other techniques to memorize <br>if one person never learns that or develops that its more difficult to use that tool to your advantage.<br>usually its poor class that suffer. hence the lower IQ numbers.<br>now some poor people know the value of a good education and can overcome that barrier. but the poor who dont or rebel or abuse their children dont.<br>so that kid has a much lower chance of breaking out of that mold