Research Methods

26 Questions | Total Attempts: 431

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Research Quizzes & Trivia

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Questions and Answers
  • 1. 
    Statistical methods are used to do what?
    • A. 

      Organise data

    • B. 

      Interpret data

    • C. 

      Both

  • 2. 
    In order to be an experiment, what must a study do?
    • A. 

      Manipulate the IV

    • B. 

      Manipulate the DV

    • C. 

      Be set in a lab

  • 3. 
    What does data collection require?
    • A. 

      Using qualitative measurements to categorise the size or an event

    • B. 

      Using a number to characterise the size of an event

    • C. 

      Both of these

  • 4. 
    If i had, small, medium, and large portions available, what would this scale be?
    • A. 

      Nominal

    • B. 

      Interval

    • C. 

      Ordinal

  • 5. 
    In a positively skewed distribution, which central tendency has the highest value?
    • A. 

      Mean

    • B. 

      Median

    • C. 

      Mode

  • 6. 
    When a distribution of scores corresponds to normal distribution its said to be...
    • A. 

      Symmetrical

    • B. 

      Asymmetrical

    • C. 

      Bimodal

  • 7. 
    The formula for variance is... 
    • A. 

      Square root of Sum of x^2 - (sum of x)^2/N

    • B. 

      (Sum of x)^2 - sum of x^2/N

    • C. 

      Sum of x^2 - (sum of x)^2/N

  • 8. 
    When measuring data at the nominal level, the test is...
    • A. 

      Parametric

    • B. 

      Non-parametric

    • C. 

      Niether

  • 9. 
    When measuring data at an ordinal level, the test is
    • A. 

      Parametric

    • B. 

      Non-parametric

    • C. 

      Niether

  • 10. 
    When data is at an interval level, the appropriate test is..
    • A. 

      Parametric

    • B. 

      Non-parametric

    • C. 

      Neither

  • 11. 
    What is family wise error rate?
    • A. 

      Probability of making type 1 errors across all individual tests made on a set of data

    • B. 

      Probability of making type 2 errors across all individual tests made on a set of data

    • C. 

      Probability of of avoiding any errors

  • 12. 
    What maintains the family wise error rate?
    • A. 

      ANOVA

    • B. 

      Post-hoc analysis

    • C. 

      Both

  • 13. 
    Family wise error rate...
    • A. 

      Increases with the number of comparisons

    • B. 

      Decreases with the number of comparisons

    • C. 

      Stays the same no matter what comparison

  • 14. 
    What is the formula for working out family wise error rate?
    • A. 

      (1- no.comparisons) ^2

    • B. 

      1 - ( 1 - alpha level) ^ no. comparisons

    • C. 

      1 - (2- alpha level) ^ no.comparisons

  • 15. 
    What test is used for an unrelated design with nominal data?
    • A. 

      Wilcoxon Ranked Sum

    • B. 

      Chi - Square

    • C. 

      Sign test

  • 16. 
    What test is used for an unrelated design with ordinal data?
    • A. 

      Wilcoxon Ranked Sum

    • B. 

      Chi - Square

    • C. 

      Sign test

  • 17. 
    What test is used for an unrelated design with interval data?
    • A. 

      Wilcoxon ranked sum

    • B. 

      Un-related t-test

    • C. 

      Chi- Square

  • 18. 
    What test is used for a related design with ordinal data?
    • A. 

      Wilcoxon signed ranks

    • B. 

      Wilxocon ranked sum

    • C. 

      Related t test

  • 19. 
    What test is used at interval data?
    • A. 

      Sign test

    • B. 

      T test

    • C. 

      ANOVA

  • 20. 
    If data is nominal with a related design what test is used?
    • A. 

      Sign test

    • B. 

      T-test

    • C. 

      ANOVA

  • 21. 
    At what level does data have to be for ANOVA?
    • A. 

      Nominal

    • B. 

      Ordinal

    • C. 

      Interval

  • 22. 
    What correlation is parametric?
    • A. 

      Spearmans

    • B. 

      Pearsons

    • C. 

      Both

  • 23. 
    Y = bx + a . What equation do you use to work out b?
    • A. 

      Total xy - totalx*totaly / N*totalx^2 - (totalx)^2

    • B. 

      Totaly - b*totalx / N

    • C. 

      N*total xy - totalx*totaly / N*totalx^2 - (totalx)^2

  • 24. 
    Y = bx + a. How do you work out a?
    • A. 

      Totaly - b*totalx / N

    • B. 

      B*totaly - totalX / N

    • C. 

      Totaly-totalx/N

  • 25. 
    For wilxocon, for a W value to be significant at 5% what does the W value have to be?
    • A. 

      Less than or equal to the critical value at 5%

    • B. 

      More than or equal to the critical value at 5%

    • C. 

      The same as the critical value at 5%