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