1. Identify the key components of a classic (i.e., a true) experiment (1 point).

2. Suppose that you want to test the hypothesis that when employees participate in decision making at work, their productivity increases.

Design an experiment that would enable you to test this hypothesis. Include the following elements in your description (4 points):

a. Any experimental, comparison and/or control groups

b.The setting of the experiment

c. What is the treatment? The outcome? How will you measure each variable?

d. How will you know if the treatment produced a change in your dependent variable?

3. Describe two potential threats to internal validity that your experiment reduces or avoids. Explain how the design of your experiment does this (2 points).

4. Explain the difference between the concept of sample generalizability (i.e., representativeness) and the external validity of an experiment (hint: there is a difference) (1 point).

5. Imagine and briefly describe a research design that would maximize generalizability in both ways (2 points).