Posted: October 9th, 2017

There is a positive correlation between GRE total scores and GPA from an electrical engineering master’s program

1. A researcher asks the question “Is there a relationship between GRE total scores and GPAs in the master’s programs in electrical engineering?” The researcher’s null hypothesis states, “There is no correlation between GRE total score and GPA from an electrical engineering master’s program.” The researcher’s alternative hypothesis states, “There is a positive correlation between GRE total scores and GPA from an electrical engineering master’s program. “Are these valid hypotheses for the research question? Why or why not? What other observations can you make regarding the hypotheses and research question?

2. Suppose you are interested in how children with severe autism experienced the receipt of special education assistance in public schools. This population is characterized by underdevelopment of social cognition, social skills, and language skills. What is the best method for collecting data to answer your research question? Why is this method best? How would you describe the research design?

3. Suppose you are interested in how children with severe autism experienced the receipt of special education assistance in public schools. This population is characterized by underdevelopment of social cognition, social skills, and language skills. How many children should be included in the study? Why? What are the factors considered in making this determination?