Infant Nutrition Iv
Posted in Health and Nutrition on 04/12/2011 09:15 am by Steven NerenbergPsychology homework help! independent variables…/sample experiment!?
In 1998 a British research team was interested in studying infant nutrition & childhood intelligence. With parental permission, the researchers randomly assigned some infants to receive standard formula fedings & others to donated breast milk feedings. When given an intelligence test called the WISC at age 8, the children who had breast milk had much higher scores than the formula fed ones.
What is the independent variable [IV]?
How is the I.V. operationally defined?
What is the dependent variable [DV]?
How is the DV operationally defined?
How do the researchers know that the infants in the breastfed group werent already more intelligent?
What is a possible theory that would help explain the outcome of this experiment?
What would you add to the exp. to make sure that the researchers did not score the intelligence tests of the children given breastmilk? What is this called?
Any responses would REALLY help me out! Thanks so much in advance.
The IV is the feeding options. Intelligence is the dependent variable (it was dependent on the feeding options).
The researchers assume the infants in the breastfed group weren’t already more intelligent because the babies were randomly assigned to the groups. Given large enough groups this should result in equal distribution of levels of intelligence in both groups.
The researchers should not score the intelligence tests of (ANY) of the babies. That could result in bias.
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