Test Splitting and Correlation Estimation Methods
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Questions and Answers

What type of variable is the dependent variable in the Mann-Whitney U test?

  • Ordinal (correct)
  • Binary
  • Continuous
  • Categorical

    • In the Wilcoxon signed-rank test, what is compared to determine a significant difference?

  • Actual values
  • Test scores
  • Ranks of test scores
  • Paired observations (correct)

    • Which test is suitable for comparing test scores before and after attending an exam preparation course?

  • Mann-Whitney U test
  • Wilcoxon signed-rank test (correct)
  • ANOVA
  • Kruskall Wallis Test

    • What type of variable is the independent variable in the Kruskall Wallis test?

    <p>Categorical</p> Signup and view all the answers

    How many independent groups does the Kruskall Wallis Test compare?

    <p>Multiple</p> Signup and view all the answers

    What distinguishes the Mann-Whitney U test from a t-test?

    <p>Paired vs. unpaired data</p> Signup and view all the answers

    Which statistical test compares ranks of test scores instead of their actual values?

    <p>Mann-Whitney U test</p> Signup and view all the answers

    'Observations from the same individuals under two different conditions or time points' describes what type of data collection method?

    <p>Longitudinal study</p> Signup and view all the answers

    In the context of teaching methods comparison, which statistical test should be used for comparing three different teachers' impact on student test scores?

    <p>ANOVA</p> Signup and view all the answers

    What kind of data is suitable for the Wilcoxon signed-rank test?

    <p>Paired observations under two conditions</p> Signup and view all the answers

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