I think the study has some solid ground, because its true parents give extraordinary care to the first born children, they would go extra mile for ensuring the growth of the first child as the child is the first one. As we all have certain passion towards our first bought car, bike, home etc. This extra care and affection would definitely help in developing their IQ. The other view put by Vineetha Venugopal could be agreed to some extent on the base that the youngest would have the privelege of being attended by so many elders and thereby become emotionally quotient as well as intelligently quotient( I believe there is a strong relationship between IQ and EQ.) Thanks
