Quiz (Chapter 14)


Analysis of Variance with Repeated Measures

Introduction
  1. In a 2x4 fully repeated measures ANOVA, a subject contributes __ scores to the analysis.
  2. 1
    2
    4
    8
  3. In any fully repeated measures ANOVA, all of the factors will be within-subjects in nature.
  4. True
    False
  5. If a factor's levels are called "Pre" & "Post," this factor probably __ a within-subjects factor.
  6. is
    isn't
One-Way Repeated Measures ANOVAs
  1. The null hypothesis for a one-way within-subjects ANOVA looks exactly like the null hypothesis for a one-way between-sujects ANOVA.
  2. True
    False
  3. A two-dimensional matrix like that shown in Figure 14.1 usually ___ included in the technical research report.
  4. is
    is not
  5. If there had been 20 people in the study depicted in Figure 14.1 (rather than just 6 people), the df number in Table 14.1 on the row called "Residual" would be equal to
  6. 18
    19
    36
    38
    39
  7. If the F of a one-way repeated measures ANOVA is significant, and if there are 3 or more levels of the factor, post hoc tests ___ be performed.
  8. can
    can't
  9. If the factor's levels are "treatments," it is important that the treatments be presented in the same order.
  10. True
    False
  11. A "______ effect" exists if one treatment, once received, influences the impact of the next treatment.
  12. post-hoc
    carry-over
    delayed-impact
    kick-in
  13. If the sphericity assumption is violated, the F-test will turn out to be _____ than it should.
  14. smaller
    larger
  15. The test procedure that's sometimes used to check on the sphericity assumption is called "_____ test."
  16. Cochran's
    Hartley's
    Mauchley's
    Tukey's
  17. If the sphericity assumption seems untenable, one option open to the researcher is to use a critical value based on smaller df values. When this is done, the researcher is said to be using the "________ correction."
  18. Pearson-Hartley
    Spearman-Tukey
    Hotelling-Hoyt
    Geisser-Greenhouse
Two-Way Repeated Measures ANOVAs
  1. A 2-way repeated measures ANOVA has __ null hypotheses, __ of which deal(s) with main effects.
  2. 2; 1
    2; both
    3; 1
    3; 2
    3; all 3
  3. If 20 people provide data for a 2x3 repeated measures ANOVA, each person will be measured __ times.
  4. 2
    3
    5
    6
    20
  5. If there had been twice as many (i.e., 12 rather than 6) players involved in the "Simon Study" shown in the top portion of Figure 14.2, this would not have changed the number of means shown in the lower portion of that Figure.
  6. True
    False
  7. A full summary table for a 2-way repeated measures ANOVA has __ rows of information and __ F values.
  8. 5 rows; 2 Fs
    5 rows; 3 Fs
    6 rows; 2 Fs
    8 rows; 2 Fs
    8 rows; 3 Fs
  9. If you add 1 to the Total df in the summary table for a 2-way repeated measures ANOVA, what do you get?
  10. The total number of people (or animals) who provided data.
    The total number of scores used in the analysis.
  11. In a 2-way repeated measures ANOVA, how many MS values serve as the denominator when forming Fs?
  12. 1
    2
    3
    4
  13. In Excerpt 14.12, how many pairwise null hypotheses for "hand condition" were set up and tested in the post hoc investigation?
  14. 1
    2
    3
    6
    It is impossible to tell from what's stated in the excerpt.
  15. In the study that provided Excerpt 14.11, one of the factors was "age" (with its levels being 12, 18, and 24 months).
  16. True
    False
  17. Because the sample sizes are equal, a 2-way repeated measures ANOVA is robust to the sphericity assumption.
  18. True
    False
  19. The numerical index that estimates how badly the sphericity assumption is violated is symbolized by the lower-case Greek letter ___.
  20. gamma
    delta
    epsilon
    theta
    lambda
  21. In the study that provided Excerpt 14.12, how many simple main effects were there for "hand condition"?
  22. 1
    2
    3
    5
    6
Two-Way Mixed ANOVAs
  1. A 2x3 mixed ANOVA has how many within-subjects factors?
  2. 1
    2
    3
    5
    6
  3. If Figure 14.3 is modified to fit the study summarized in Excerpt 14.17, how many rows would there be for participants?
  4. 46
    47
    93
    94
  5. A 2-way mixed ANOVA, a fully between-subjects 2-way ANOVA, and a fully within-subjects 2-way ANOVA all have the same basic purpose and usually involve three null hypotheses.
  6. True
    False
  7. In Excerpt 14.18, how many paired-samples t-tests were conducted?
  8. Just 1
    2
    3
    6
  9. In the study that provided Excerpt 14.18, how many research questions were concerned with interaction?
  10. Just 1
    2
    3
    5
    6
  11. If, in the diagram on page 333, the upper right-hand cell mean had been smaller, the main effect means for "Gender" would have turned out ____.
  12. closer together
    farther apart
  13. The "top" and "bottom" sections in a mixed ANOVA's summary table are often labeled with what terms?
  14. "Initial" and "Final"
    "Mixed" and "Unmixed"
    "Repeated" and "Unrepeated"
    "Between-subjects" and "Within-subjects"
  15. If an ANOVA summary table is built for Excerpt 14.14, the main effect for Recipient of Tease will appear in the _____ section of the summary table.
  16. top
    bottom
  17. The number of subjects supplying data for a mixed ANOVA can be determined by adding 1 to which of the dfs?
  18. The df for Between Subjects
    The df for Within Subjects
    The df for Error (Between)
    The df for Error (Within)
    The df for Total
  19. If 30 children had been involved in the study described in Excerpt 14.14, how many df would be on the ANOVA summary table's row called Error (Within)?
  20. 3
    14
    28
    29
    30
  21. In Excerpt 14.20, what was changed by the Huynh-Feldt corrections?
  22. The number of factors
    The size of dfs
  23. In Excerpt 14.19, what was the repeated measures factor?
  24. Weight condition
    Group
  25. In a two-way mixed ANOVA, a post hoc investigation can focus only on the main effect means.
  26. True
    False
  27. If we double the number of participants in a two-way mixed ANOVA, which of the main effect dfs would change?
  28. The df for the between-subjects main effect
    The df for the within-subjects main effect
    The df for both main effect
    The df for neither main effect
  29. If we double the number of participants in a two-way mixed ANOVA, which of the error dfs would change?
  30. The df for error(between)
    The df for error(within)
    The df for both error terms
    The df for neither error term
  31. Which of the F-tests of a 2-way mixed ANOVA are positively biased if the sphericity assumption is violated?
  32. Only the F-test for the main effect of the between-subjects factor
    Only the F-test for the main effect of the within-subjects factor
    Only the F-test for the interaction
    Both of the F-tests located in the "Within Subjects" portion of the ANOVA table
    All 3 of the F-tests
  33. Can a 2-way mixed ANOVA yield results that are significant statistically but are not significant in a practical sense?
  34. Yes
    No
Three Final Comments
  1. If a researcher says that he/she used a "two way repeated measures ANOVA," you ____ be confident that there were repeated measures on both factors.
    can
    can't
  2. The nine-step version of hypothesis testing ___ help the researcher avoid the possible problem of ending up with statistical significance without practical significance.
  3. can
    can't
  4. The use of within-subjects factors in an ANOVA eliminates the possibility of inferential error.
  5. True
    False

 

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