Spanking Kids

if you have a child, you are going to spank to your child when he behave bad thing?
in my opinion, i do not want to spank to my child, because i do not think little kids can understand what i say only a once. i mean that i have to say same thing many times to the kids. even only one time, the kids cannot understand. so we have to tell a lot of times.
if the kids do not listen to me, probably i am going to punish the kids. so i mean from the first, i tell the reason why it is not good, and then the kids do not understand, i tell again. even i told 100 times, the kids do not listen to me, maybe i gonna punish them....
however, the article, which i read today, said that "the more a child was spanked, the lower their IQ was compared with other kids." i agree this, because the kids do not know what is good and what is bad. so at first, we have to teach them, and it is going to make kids think and the kids are going to be smart.