1. Bell Work Pick two of the types of descriptive research.
What might they be used to study?

2. Experiments

3. Experiments Are the only way to establish cause and effect.
Has precise requirements to qualify as a valid experiment.

4. Hypothesis
Result of observation or review of previous research.

5. Designing an Experiment
Experimental Group
Gets the experimental manipulation
Control Group
Does not receive experimental manipulation
Operational Definitions
Description of variable measurement

6. Variable to be Measured
Operational Definition
Aggression
Number of seconds to honk the horn at the car ahead that isn’t taking off at a light.
Low Self-Esteem
Number of negative words used in a creative story about themselves.
Decision making skills
Number of groups able to solve a performance task, like a puzzle.

7. Experimenter Bias
Refers to the possibility that expectations might skew results.
Girls and math
Single-blind study
Participants are unaware of which group they belong to.
Double-blind study
Participants and researchers are unaware which group the participants belong to.

8. Variables Independent Dependent Extraneous
Manipulated or controlled by researchers to influence the dependent variable.
Dependent
What the researchers measure to determine effect of independent variable.
Extraneous

9. Project 1: design an experiment
Operation:
Project 1: design an experiment

10. Due Dates

11. Steps

12. What you should do

13. Today
Brainstorm questions on a scrap piece of paper.

14. Pick one that you would like to know more about.
Hold on to the scrap paper, you may need it.

15. Research Research your question, see what’s been found.
If your question has been answered, try a different question.