PSYCH 610 Week 4 Individual Assignment Homework Exercise Essay

623 Words Nov 1st, 2014 3 Pages
This work of PSYCH 610 Week 4 Individual Assignment Homework Exercise shows the solutions to the following points: 1. What is a confounding variable and why do researchers try to eliminate confounding variables? Provide two examples of confounding variables.
2. What are the advantages and disadvantages of posttest only design and pretest-posttest design?
3. What is meant by sensitivity of a dependent variable?
4. What are the differences between an independent groups design and a repeated measures design?
5. How does an experimenter
Psychology - General Psychology Week Four Homework Exercise

Answer the following questions, covering material from Ch 8–10 of Methods in Behavioral Research :

1. What is a confounding
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It may be more trouble than its worth to have it there, so find out what you can before you bring the car.
Psychology - General Psychology Week Four Homework Exercise

Answer the following questions, covering material from Ch 8–10 of Methods in Behavioral Research :

1. What is a confounding variable and why do researchers try to eliminate confounding variables? Provide two examples of confounding variables.

2. What are the advantages and disadvantages of posttest only design and pretest-posttest design 3. What is meant by sensitivity of a dependent variable? 4. What are the differences between an independent groups design and a repeated measures design? 5. How does an experimenter’s expectations and participant expectations affect outcomes? 6. Provide an example of a factorial design. What are the key features of a factorial design? What are the advantages of a factorial design? 7. Describe at least four different dependent variables. 8. What are some ways researchers can manipulate independent variables? 9. What is the difference between main effects and interactions? How do moderator variables impact results? Provide an example. 10. A researcher is interested in studying the effects of story endings on preference ratings. He randomly assigns participants into two groups: predictable ending or surprise ending. He instructs them to read the story and provide preference

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