1. Experimental Design
Statistics

2. Guidelines (6 Steps)
Identify the variable(s) of interest and the population of the study
Develop a plan for collecting data (if a sample is used it must represent the population)
Collect the data
Describe the data
Interpret the data and make decisions
Identify any possible errors

3. Data Collection Observational Study
A researcher observes and measures characteristics of interest of part of a population but doesn’t play with the conditions
Some times it seems like somebody’s watching me… Classic

4. You take the blue pill, the story ends…
Experiment
A Treatment is applied to part of a population and responses are observed.
The other part of the population (control group) gets a placebo.
You take the blue pill, the story ends…

5. Chicks dig my simulation goggles…
A reproduction of conditions of a situation or process
Chicks dig my simulation goggles…

6. Survey
An investigation of one or more characteristics of a population.
What’s your favorite Ice Cream:
Rocky Road
Cookies and Cream
Vanilla
Cookie Dough

7. Deciding on Methods
A study of the effect of changing flight patterns on the number of airplane accidents
A study of the effect of eating oatmeal on lowering blood pressure
A study of how fourth grade students solve a puzzle
A study of U.S. residents’ approval rating of the U.S. president