Born First, Born Smarter Experiment Essay

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Born First, Born Smarter Experiment

The experiment that I read was "Born First, Born Smarter". It was a study done by R. B. Zajonc and G. B. Markus in 1975. They planned to see why recent research had determined that the first-born child in a family related to certain characteristics. It was round that first-born children tend to be more verbally articulate, less impulsive, more active, better performers in school, more likely to go to college, and tend to have a greater need to achieve. It was also found that earlier-born children tend to score higher on tests of intelligence and aptitude than those born into the family later. One of the things researchers looked at was the different environments that a first-born and second-born
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Instead of actually coming into contact with their subjects, Zajonc and Markus applied their theory to a set of data that had been gathered and published by other researchers, Belmont and Marolla. Belmont and Marolla gave 350,000 Dutch males a "Raven" test, which is similar to an I.Q. test. They found a strong relationship between the birth order of the men and their scores on the Raven test. The scores decreased as family size increased and also declined with birth order. Using the information provided by Belmont and Marolla, Zajonc and Markus proposed the theory that as family size increases, the average intellectual climate of the family decreases. Zajonc and Markus put the data from the Belmont and Marolla study into a table that provided information about the number of children and the average intellectual score for the children. They noticed that in larger families there is somewhat of a leveling off or even an increase in scores for the extreme later-born children. The reason for this increase is because the other siblings start to leave the family and contribute towards the average intellectual climate. Zajonc and Markus also found that twins and triplets performed lower on tests of intelligence than non-twin siblings. Zajonc and Markus didn't try to claim that the only
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