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Chapter 9
multiple choice questions for Objective 3
multiple choice questions for Objective 3
This activity contains 4 questions.
In an experimental study of the effects of inclusion on academic self-concept of children with special needs, the researcher is in control of
the selection of subjects but not their assignment to treatment group.
the selection and assignment of subjects.
the assignment of subjects to treatment group but not their selection.
neither the selection nor assignment of subjects.
Which of the following would NOT necessarily be an assigned variable?
Self-concept
Participation in specific math activities in class
Attitude toward school
Father's level of education
Control in experimental research is best described as an attempt to
limit threats to external validity.
increase the generalizability of findings.
equate the subjects on the treatment variable.
limit threats to internal validity.
Which of the following is a participant variable which a researcher does not need to control in a study looking at student achievement?
Height
Preexisting knowledge
Gender
Socioeconomic status
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