# Question

(a) In this chapter we tested the relationship between performance scores and perceived difficulty. Describe this relationship using “as a function of.”

(b) An experimenter computes the mean anxiety level for samples of freshmen, sophomores, juniors, and seniors. To graph these results, how would you label the axes?

(c) Would this be a bar or line graph and why?

(b) An experimenter computes the mean anxiety level for samples of freshmen, sophomores, juniors, and seniors. To graph these results, how would you label the axes?

(c) Would this be a bar or line graph and why?

## Answer to relevant Questions

(a) Name and explain the error that power prevents. (b) Why is it important to maximize the power of any experiment? (c) How is this done in a design using ANOVA? (d) How does influencing the differences between and within ...(a) What is the experiment-wise error rate? (b) Why does ANOVA solve the problem with the experiment-wise error rate created by multiple t-tests? After performing a 3 × 4 ANOVA with equal ns, you find that all Fs are significant. What other procedures should you perform? (a) How do you recognize the independent variable in a study? (b) How do you recognize the levels in a study? (c) How do you recognize the dependent variable in a study? For a 2 × 2 ANOVA, describe the following in words: (a) The statistical hypotheses for factor A, (b) The statistical hypotheses for factor B, and (c) The statistical hypotheses for A × B.Post your question

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