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From a group of students enrolled in social studies in a high school, a researcher randomly selected 60 students

Writing

From a group of students enrolled in social studies in a high school, a researcher randomly selected 60 students. The students were then divided into two groups by random assignment of 30 to group A, the traditional social studies curriculum, and 30 to group B, a new program designed to deal with the history of certain ethnic groups. The two groups were compared at the end of the semester on a scale designed to measure attitudes toward ethnic groups.

For this study,

a. Discuss whether it is a correlational study or an experimental study and why. Include in your discussion a clear statement about which specific research design is being used as well as clear statements about what you believe the null and alternative hypotheses would be for the study, based on the information given.

b. State whether the study contains the following: Independent variable, dependent variable, control group, experimental group, and identify each.

c. Explain possible methods the researcher used to control for differences between groups as well as possible threats to internal validity.

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