A researcher wishes to study the effects of a concentrated remedial reading program on the reading achievement of disadvantaged children. A large number of children are available for assignment to groups. Since intelligence is an important relevant variable in any research on reading, the investigator wants to make sure that it is controlled as well as the reading pretest scores. What would be
the most effective way for the researcher to control these variables?
a. Set up groups and then check to make sure that there are no significant differences between the groups on intelligence and reading pretest scores.
b. Randomly assign children to experimental and control groups.
c. Match the children on intelligence test and reading pretest scores and then randomly assign the matched pairs to experimental and control groups.
d. Randomly assign children to experimental and control groups and use intelligence test and reading pretest scores in an analysis of covariance.
D
You might also like to view...
Arjun has an intellectual disability, problems with his heart and hearing, and one extra chromosome 21. He most likely has ______.
a. Down syndrome b. Klinefelter syndrome c. Turner syndrome d. Fragile X
According to researchers at Harvard, boys perform best in school when they:
A. get to work independently. B. get to work in groups. C. are able to move freely about the classroom. D. focus their learning on math and science.
What are four accommodations you can make for students with disabilities before a test to help them perform more successfully?
What will be an ideal response?
What are inferential statistics? Define the ter
What will be an ideal response?