QUESTION 1 A researcher measures anxiety levels among participants in the presen

Question

QUESTION 1

A researcher measures anxiety levels among participants in the presence and absence of a fearful stimulus. If the same participants are observed in each group, then what type of statistical design is appropriate for this study?

A) a one-way between-subjects ANOVA

B) a one-way within-subjects ANOVA

C) both A and C

QUESTION 2

A researcher conducts a within-subjects design and notes that scores increased at each level of the factor for all participants. Based on this description, does this test have high power to detect the effect?

A) No, because participant responding was inconsistent.

B) Yes, because participant responding was inconsistent.

C) Yes, because participant responding was consistent.

QUESTION 3

The alpha level for each hypothesis test made on the same set of data is called

A) testwise alpha

B) pairwise comparison

C) the Bonferroni procedure

QUESTION 4

If this test is significant then the assumption of sphericity has not been met and an appropriate correction must be applied to the degrees of freedom of the F-ratio in repeated-measures ANOVA. The test works by comparing the variance-covariance matrix of the data to an identity matrix; if the variance-covariance matrix is a scalar multiple of an identity matrix then sphericity is met. What is the test of the assumption of sphericity?

A) Levene’s test

B) Schaffé test

C) Mauchly's test

A) a one-way between-subjects ANOVA

B) a one-way within-subjects ANOVA

C) both A and C

Explanation / Answer

The correct answers are as mentioned below:-

1) C) both A and B.

2) C) Yes, because participant responding was consistent.

3) A) testwise alpha

4) C) Mauchly's test

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