Test yourself
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1.Pilot studies are useful for testing simple hypotheses

2. Data snooping in an exploratory experiment is useful as it helps to eliminate false positive results

True
False
False, that is not
their purpose
False, data snooping
involves making up a
hypothesis after looking 
at the data. Not good!
True
False

3. Pilot studies can be used to test logistics of a proposed future experiment

4. Pilot studies need to be large in order to gain experience and manual dexterity

True
True. That is one of their
 purposes
False
False. Pilot studies
 can be small
True
False

5. Exploratory experiments are used to test the hypothesis that two variables are related

6. In a controlled experiment there needs to be independent replication of the observations.

False. Exploratory studies are 
not suitable for testing 
hypotheses
True
False
True. If observations are not
independent you will get
the wrong answer
True
False

7. Confirmatory experiments are used to test the null hypothesis of no difference between treatment groups

True. Confirmatory experiments are
used for testing hypotheses.
True
False

8. In a controlled experiment  the aim is to compare different groups

True.
False
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True. All controlled experiments
are comparative