Shaywitz, Shaywitz, Blachman, and colleagues (2004) conducted an experiment to s

Question

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.) In this experiment, the dependent variable is___ and the independent variable is___ The individuals who are in the control condition are typically referred to as the control group consists of___ ___ is a construct that is being tested in this experiment, and the experimenters have operationally defined it as___

Explanation / Answer

1) dependent: activity in the left hemisphere regions of the brain

independent variable: the treatment,here the method of reading intervention

2) the group (n=12) receive the treatment that was typically used in their community.

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