EXERCISE 2: TESTABLE OBSERVATIONS
Determine which of the observations below are testable. Forthose that are testable:
• Determine if the observation is qualitative orquantitative.
• Write a hypothesis and a null hypothesis.
• What is your experimental approach?
• What are the dependent and independent variables?
• What are your controls, both positive and negative?
• How will you collect your data?
• How will you present your data (e.g., chart, graph, type)?
• How will you analyze your data?
Observations
1. A plant grows three inches faster per day when placed on awindow sill than it does when placed on a coffee table in themiddle of the living room.
2. The bank teller with brown hair and brown eyes is taller thanthe other tellers.
3. When Sally eats healthy foods and exercises regularly, herblood pressure is 10 points lower than when she eats fatty foodsand does not exercise.
4. The Italian restaurant across the street closes at 9 pm, butthe one-two blocks away closes at 10 pm.
5. For the past two days, the clouds have come out at 3 pm, andit has started raining at 3:15 pm.
6. George did not sleep at all the night following the start ofDaylight Savings Time.
