From a slightly different temperament: #1 stopped recording books in the class reading competition, because winning isn't as important as reading (after all, the point of the competition is to encourage children to read, and one is already reading all the time), and there was another child for whom winning mattered.
Went through this again in a later grade, with regard to recording times in the required reading log. Of course, this counted into one's grade.
This is true in my family, too. One child is a competitive, driven, teacher-pleaser and the other is exact opposite. Even though their IQ profiles (GAI, anyhow, don't know DD's processing speed but suspect it's much higher than DS') are very similar in terms of VCI v. PRI. I would expect them to be more "alike" but they are as different as day and night. DD would fill out those assignments because she cares about how she is perceived, even though she might (privately) complain.
