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Quiz

Research Methods IV - Week 10 Factorial ANOVA III

Brage Haavik 10 perguntas 5,0 (3 avaliações)

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Perguntas do quiz (10)

  1. 1Assuming the data meets the assumptions of parametric tests, non-parametric tests compared to their parametric counterparts ____________.
    1. AAre more conservative
    2. BHave less statistical power
    3. CAre less likely to accept the alternative hypothesis
    4. DAll of the above
  2. 2A researcher measured leadership skills in doctors, police officers and accountants. The data were skewed. What is the most appropriate test to analyse the data?
    1. AKruskal-wallis test
    2. BFriedman test
    3. CWilcoxon test
    4. DMann-whitney test
  3. 3The results of the test used to analyze the data described in question 2 showed a significant result. How should the researcher carry out post-hoc tests?
    1. ACompare groups using Mann-whitney test
    2. BCompare groups using Wilcoxon test
    3. CCompare groups using t-Test
    4. DNon of the above. Post-hoc analyses can not be carried out with non-parametric data
  4. 4An advantage of non parametric statistics is that ____________.
    1. AThey are easy to calculate
    2. BThey are very powerful
    3. CYou need a computer to calculate them
    4. DThey have many assumptions to meet
  5. 5Which of the following tests is analogous to a standard within-subjects ANOVA?
    1. AFriedman
    2. BKruskal-wallis
    3. CWilcoxon
    4. DMann-whitney
  6. 6Tied scores (when two or more scores have the same value) may present a problem in non-parametric tests. The way to deal with them in a Kruskal-Wallis test is to
    1. AThrow out the tied data
    2. BAssign any tied values the lower of the ranks they would have recieved had they not been tied
    3. CUse a random number table to assign ranks to the tied values
    4. DAssign any tied values the average of the ranks they would have recieved had they not been tied
  7. 7A data-set contains the following values: 23, 28, 37, 23, 45, 49, 37, 62. Rank the values. Which rank is associated with value 37?
    1. A4
    2. B4.5
    3. C3.5
    4. D6
  8. 8Researchers wanted to examine whether the 'sea-food' diet was effective. A group of volunteers were placed on the diet and their weight (in kilograms) was measured at the beginning of the diet, after 1 month, after 2 months, then at the end of the diet after 3 months. The data were not normally distributed. Which test would be appropriate to analyse the data?
    1. AFriedman
    2. BWilcoxon
    3. CKruskal-Wallis
    4. DMann-Whitney
  9. 9The output from the study described in question 8 is shown below.
    What is the correct way to report these results?    Imagem da pergunta 9
    1. AThe weight of the participants did not significantly change during the diet, x2 (3) = .60, p = .89
    2. BThe weight of the participants did significantly changed during the diet, x2 (3) = .60, p > .05
    3. CThe weight of the participants did not significantly change during the diet, x2 (3) = .60, p = .90
    4. DThe weight of the participants did significantly changed during the diet, x2 (3) = .60, p < .05
  10. 10In a Kruskal-Wallis test, the ____________ the value of H, the more likely you are to reject the null hypothesis
    1. AMore negative
    2. BSmaller
    3. CLarger
    4. DH is not relevant for the Kruskal-Wallis test

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Descrição
Quiz sobre Research Methods IV - Week 10 Factorial ANOVA III, criado por Brage Haavik em 16-04-2019.
Idioma
English
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5,0 de 5 · 3 avaliações
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