Older Siblings Have Higher IQs

Discussion in 'The Lounge' started by xmichelly, Jun 24, 2007.

  1. xmichelly

    xmichelly Well-Known Member

    Being the oldest child in the family has its perks: later bedtimes, no hand-me- downs, and, according to a new study, a higher IQ.

    The study, detailed in the June 22 issue of the journal Science, analyzed the IQs of nearly 250,000 Norwegian 18- and 19-year-old draftees and found that older siblings had higher scores than younger siblings.

    Another study, by the same authors of the new Science study but published recently in the journal Intelligence, looked at more than 100,000 Norwegian brothers and found that first-borns on average had an IQ 2.3 points higher than their younger brothers (the IQs were all taken when the brothers were 18 or 19, so they compare the older brother’s score at that age to the younger brother’s score when he reached that same age).

    “These are probably the two most important studies on birth order and intelligence in the last 75 years,” said psychologist Frank Sulloway of the University of California, Berkeley, who wrote an analysis of the latest study for Science.

    Social order

    Unlike earlier studies that compared the intelligence of first-born children to those born later (and that also found that first-borns have higher IQs), the Science study looked at the social order of the children in a family, which does not always correspond to actual birth order in cases where there is a death in the family.

    By comparing children who lost an older sibling, for instance, and so were treated as the eldest child, to those who were actually the first-born of their family, the authors showed that the former group had similar IQs to the latter group.

    “The second-borns who lost an older sibling are becoming like a first-born” in terms of IQ, Sulloway said.

    Sulloway says the new research rules out criticisms of earlier studies that argue that the findings were an artifact of other factors in the data, such as family size and parental IQ.

    Reversing trend

    Psychologists have a few theories to explain the new results. One proposes that older siblings “tutor” their younger brothers and sisters, which reinforces their own learning, though direct evidence for this particular theory is lacking.

    Paradoxically, younger siblings start out in life with higher IQs: Because younger children haven’t yet mastered the skills their older siblings have (for example, language or math skills), they actually degrade the learning environment of their elder brother or sister.

    “Every time you add a child, you’re diluting the intellectual environment of everyone in the family,” Sulloway said.

    But eventually, around the age of 12, this trend reverses and the older siblings overtake their younger siblings.

    Sulloway points out that though older siblings may win out in IQ, the time they devote to studying is time spent elsewhere by their younger siblings, who may excel in other areas such as the arts or sports.

    Article from Yahoo! News

    Younger siblings, older siblings, what do you think of this? I'm the younger one and I think it has a bit of truth to it -whistle
     
    #1 xmichelly, Jun 24, 2007
    Last edited: Jun 25, 2007
  2. fearless_fx

    fearless_fx Eugooglizer

    im the older sibling in my family and i agree with this. my younger brother is a fool.
     
  3. dim8sum

    dim8sum ♫♪♫♪♫♪♫♪♫♪♫♪....

    i cant say the oldest sibling is the most clever in my family, i would say the least clever in fact
     
  4. lee-lee

    lee-lee Well-Known Member

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    i'm taking it that u are NOT the oldest child. haha.
     
  5. k100

    k100 Active Member

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    well im the oldest and my sister is stupied pretty much ps from the person who started the thread good job with copy and paste off yahoo :p i like ur style
     
  6. Taxloss

    Taxloss Stripper Vicar

    Yeah, I'm the oldest and I have a higher IQ yup. -coolio


    (hmm can't claim my sis is a fool...I know she lurking around) -unsure
     
  7. 無得頂

    無得頂 Well-Known Member

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    I am the older one and I disagree with this.
     
  8. subaru3169

    subaru3169 Well-Known Member

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    i'm the youngest one.. : sigh :

    my brother and sister are smarter than i am=(
     
  9. k100

    k100 Active Member

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    well there older they kno more of course there smarter
     
  10. BabyRain

    BabyRain Doppelgänger of da E.Twin

    Muahaha me too.
     
  11. philostrate

    philostrate Well-Known Member

    erm really? mine is the other way round....i'm da youngest lol....i got an emali that stated most of the university students can't even answer a simple question but the kids are better and got it correct... here goes

    What is greater than God and more evil than devil?
     
  12. Taxloss

    Taxloss Stripper Vicar

    ^Nothing

    Was the easiest question...would be a different thing if they gave maths questions though.
     
    #12 Taxloss, Jun 24, 2007
    Last edited: Jun 24, 2007
  13. Knoctur_nal

    Knoctur_nal |Force 10 from Navarone|

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    bs article..
     
  14. hkm91450

    hkm91450 Well-Known Member

    This is soo true. I am the smartest of my siblings ^^ and then it degrades hehe.
     
  15. Knoctur_nal

    Knoctur_nal |Force 10 from Navarone|

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    i bet ur lying...hahah
     
  16. [N]

    [N] RATED [ ]

    disagree fo sure lol, usually the younger ones learn from the older ones and they become smarter cause they know something at an earlier age.
     
  17. aishiteru4

    aishiteru4 Well-Known Member

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    hehe i wouldnt say least clever... hmm i m the youngest.. i would say.,. i m a little smarteer... not much difference.. like if my sis's iq was 100, i'll be 101
    ehehehe
    but my sister makes it up with hardwork... n i m pure lazy bum..-clapclap

    i guess so.. i started learnin math when i was like 4 or 5... like those harder ones.. cus my sis was at it.. hehe n it's fun to prove her wrong lol... cus she's 11 yrs older than i m.. so that time she was doing quite some advance shit.. n when u point out to her.. hey u dum dum thats wrong.. hahah man the look on her face.. ahahha those were the times-bigclap
     
  18. xmichelly

    xmichelly Well-Known Member

    Is it because you're the younger one? Or just because it seems not probable/applicable for everyone?
     
  19. hiake

    hiake Vardøgr of da E.Twin

    I would think it's not true. Although usually younger siblings usually have higher EQ for obvious reasons (more people to deal with and less consultation time with parents)...
     
  20. ch0ps7ix

    ch0ps7ix Well-Known Member

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    i disagree too..... im the oldest... but my little brothers are smart in their own ways......