Examination Bank For Research Approaches and Data Analysis An Analytical Thinking Strategy, 4th Version by Sherri L. Jackson

ISBN 10: 1111346550

ISBN 13: 9781111346553

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Research Approaches And Data Analysis An Analytical Thinking Strategy, 4th Version By Sherri L. Jackson – Examination Bank

An Assortment of Different Questions

1. _____ is a method of establishing a more rigorous alpha level in order to minimize Type I errors.
a. ANOVA
b. The Bonferroni adjustment
c. An F-ratio
d. The sums of squares

Response: b

2. Employing designs with more than two levels of an independent variable enables researchers to:
a. explore more than two types of treatment in a single study.
b. compare two or more types of treatment with a control group.
c. assess a placebo group against the control and experimental groups.
d. accomplish all the other alternatives.

Response: d

3. Systematic variability could include:
a. both experimental results and confounding variables.
b. experimental results.
c. confounding variables.
d. experimenter results.

Response: a

4. If between-groups variance is small, then we have not observed:
a. experimenter results.
b. an effect of the dependent variable.
c. sufficient samples.
d. an effect of the independent variable.

Response: d

5. Whenever the F-ratio is close to 1.00 it means that:
a. an error has been made in the computation.
b. there are significant systematic effects present.
c. the experimental manipulation may have had the expected effects.
d. the between-groups variation is no greater than could be expected by chance alone and no
greater than the within groups variance.

Response: d

6. The greater the within-groups (error) variance:
a. the more challenging it becomes to demonstrate the effects of experimental variance.
b. the easier it becomes to demonstrate the effects of experimental variance.
c. the more difficult it becomes to conduct the F test.
d. the easier it becomes to demonstrate a causal influence of the independent variable on the dependent
variable.

Response: a

7. When conducting an experiment with more than two levels of the independent variable, a _____ is preferred over a _____ due to the reduced risk of a _____.
a. one-way ANOVA; t-test; Type II error
b. one-way ANOVA; t-test Type I error
c. t-test; one-way ANOVA; Type II error
d. t-test; one-way ANOVA; Type I error

Response: b

8. The null hypothesis for a one-way randomized ANOVA states:
a. H0: 1 = 2 = 3.
b. H0: 1  2  3.
c. Ha: 1 = 2 = 3.
d. Ha: 1  2  3.

Response: a

9. The alternative hypothesis for a one-way randomized ANOVA states:
a. H0: 1 = 2 = 3.
b. H0: 1  2  3.
c. Ha: 1 = 2 = 3.
d. Ha: 1  2  3.

Response: d

10. If the null hypothesis for an ANOVA is true, then the F-ratio should be:
a. greater than 5.00.
b. a negative quantity.
c. 0.00.
d. 1.00.

Response: d

11. The F-ratio is a ratio of _____ variance over _____ variance.
a. between-groups; within-groups
b. within-groups; between-groups
c. total; between-groups
d. total; within-groups