6. Experiments, variables, and measurements Aa Aa Shaywitz, Shaywitz, Blachman,

Question

6. Experiments, variables, and measurements Aa Aa Shaywitz, Shaywitz, Blachman, and colleagues (2004) conducted an experiment to see whether a reading intervention based on phonetics could alter the functioning of the left hemisphere region of the brain to help children with reading disabilities read better. Some children (n 37) were randomly assigned to receive the phonologically based reading intervention, whereas another group (n = 12) received the treatment that was typically used in their community. Children taught with the phonologically based reading intervention demonstrated increased activity in the left hemisphere regions of the brain during functional magnetic resonance imaging (MRI) compared with those who received the typical treatment. [Source: Shaywitz, B. A., Shaywitz, S. E., Blachman, B. A., et al. (2004). Development of left occipitotemporal systems for skilled reading in children after a phonologically-based intervention. Biological Psychiatry, 55(9), 926-933.] n ent the dependent va able of function er ertele t he is here region ofthe brain and the independent variable is The individuals who are in the control condition are typically referred to as the control group. Here, the control group consists ofchildren who received the treatment typically used in the community is a construct that is being tested in this Activity in the left hemisphere brain regions measured using an MRI Functioning of the left hemisphere region of the brain

Explanation / Answer

Yes, you are correct

Independent variable: Type of reading intervention

Dependent Variable: Functioning of left hemisphere of brain

In an experiment, a control group is a baseline group that receives no treatment or a neutral treatment.

Here - Children who received the treatment typically received in community

Construct - functioing of the left hemisphere of the brain is correct

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