__Research Topic__: The relationship between self-esteem and test
performance.

1. Design a correlational study to investigate the relationship between these two variables. What is your hypothesis? How will you operationally define and measure the two variables?

2. How will you obtain a random sample of participants?

3. Assume that your study produces a correlation of .56 between the two variables. What are at least three possible causal explanations for this relationship?

4. Now design an experimental study to investigate these variables. What is your hypothesis? What type of hypotheses does the experimental method allow you to test that the correlational method does not?

5. What is your independent variable? What is your dependent variable?

6. How will you make sure that the study has high internal validity? Will you use random assignment to conditions?

7. Do any ethical concerns about the treatment of participants emerge from your experimental design?

__Research Topic__: The relationship between the amount of time couples
spend together and their relationship satisfaction.

1. Design a correlational study to investigate the relationship between these two variables. What is your hypothesis? How will you operationally define and measure the two variables?

2. How will you obtain a random sample of participants?

3. Assume that your study produces a correlation of .56 between the two variables. What are at least three possible causal explanations for this relationship?

4. Now design an experimental study to investigate these variables. What is your hypothesis? What type of hypotheses does the experimental method allow you to test that the correlational method does not?

5. What is your independent variable? What is your dependent variable?

6. How will you make sure that the study has high internal validity? Will you use random assignment to conditions?

7. Do any ethical concerns about the treatment of participants emerge from your experimental design?

__Research Topic__: The relationship between audience members' opinions
of a movie and their mood.

1. Design a correlational study to investigate the relationship between these two variables. What is your hypothesis? How will you operationally define and measure the two variables?

2. How will you obtain a random sample of participants?

3. Assume that your study produces a correlation of .56 between the two variables (between liking the movie and audience members' happiness). What are at least three possible causal explanations for this relationship?

4. Now design an experimental study to investigate these variables. What is your hypothesis? What type of hypotheses does the experimental method allow you to test that the correlational method does not?

5. What is your independent variable? What is your dependent variable?

6. How will you make sure that the study has high internal validity? Will you use random assignment to conditions?

7. Do any ethical concerns about the treatment of participants emerge from your experimental design?

__Research Topic__: The relationship between alcohol consumption
and academic performance.

2. How will you obtain a random sample of participants?

3. Assume that your study produces a correlation of ?.56 between the two variables. What are at least three possible causal explanations for this relationship?

5. What is your independent variable? What is your dependent variable?

7. Do any ethical concerns about the treatment of participants emerge from your experimental design?

__Research Topic__: The relationship between time spent listening
to Heavy Metal music and aggression.

2. How will you obtain a random sample of participants?

3. Assume that your study produces a correlation of .56 between the two variables. What are at least three possible causal explanations for this relationship?

5. What is your independent variable? What is your dependent variable?

7. Do any ethical concerns about the treatment of participants emerge from your experimental design?

Research Topic: The relationship between the physical attractiveness
of a political candidate and voters' opinions of him.

2. How will you obtain a random sample of participants?

5. What is your independent variable? What is your dependent variable?

7. Do any ethical concerns about the treatment of participants
emerge from your experimental design?

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