Question 1

If the null hypothesis states that there will be no difference in the average score of 9th graders and the average score of 12th graders on the ABC memory test, how should you state the nondirectional research hypothesis?

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Question 2

When might you use a one-tailed test, and when would you want to use a two-tailed test?

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Question 3

Using the symbols from the text, write a directional research hypothesis equation where 9th graders are hypothesized to score better 12th graders.

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Question 4

What are the basic criteria for judging the quality of hypotheses?

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Question 5

What is a hypothesis?

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Question 6

Explain the difference between the null hypothesis and a research hypothesis.

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Question 7

What are the different types of research hypotheses? What are they testing?

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Question 8

Explain what is meant by the fishing trip approach to doing research.

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Question 9

What is the sampling error? What does a high sampling error indicate?

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Question 10

What does the null hypothesis always refer to? What does the research hypothesis always refer to?

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Quiz 7: Hypotheticals and You: Testing Your Questions