Data Analysis In Psychology

43 Questions | Total Attempts: 150

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Data Analysis Quizzes & Trivia

This is a quiz concerning Data analysis in experimental psychology. So, let's try out this quiz.


Questions and Answers
  • 1. 
    Failing to reject the null hypothesis states that you have ____ population(s)?
    • A. 

      2

    • B. 

      1

    • C. 

      0

    • D. 

      4

  • 2. 
    What do you need in order to determine whether or not the groups differed by chance?
    • A. 

      Standard deviation

    • B. 

      Index of variability

    • C. 

      Mean score

    • D. 

      Between score

  • 3. 
    What does central tendency refer to?
    • A. 

      Mean median and mode

  • 4. 
    What can skew the mean?
    • A. 

      Outliers

  • 5. 
    What are three ways to calculate variability?
    • A. 

      Range, variance and standard deviation

  • 6. 
    What is the alpha level of the error rate?
    • A. 

      .05

  • 7. 
    What are two ways to eliminate chance occurance
    • A. 

      Repetition and statistics

  • 8. 
    Statistical test selected is based on______?
    • A. 

      Design

    • B. 

      Variability

    • C. 

      Likelihood of chance

    • D. 

      Standard deviation

  • 9. 
    List the 4 characteristics we need to know about a design
    • A. 

      How many IV's, how many levels, scale of measurement, and between or within subjects

  • 10. 
    What are the three scale of measurements?
    • A. 

      Nominal, ordinal and interval ratio

  • 11. 
    What does a ordinal measurement measure?
    • A. 

      Continuous variables

    • B. 

      Discrete variables

    • C. 

      Categorical information

    • D. 

      Ranking numbers

  • 12. 
    What type of statistical test is used with a between participants design with one IV and two levels?
    • A. 

      Independent samples t-test

  • 13. 
    A t-test gives us ______ that is the ratio of the between group mean difference to the average within group variability.
    • A. 

      T- value

  • 14. 
    What aspect of the t-test gives you the t-value?
    • A. 

      Standard deviation

  • 15. 
    If the t-value obtained is greater than the t-value critical then you can...
    • A. 

      Reject the null

  • 16. 
    What kind of statistical test do you have when your IV is a with-in subject variable
    • A. 

      Dependent samples t-test

  • 17. 
    What statistical test do you use when there are more than 2 levels, in a between group and 1 DV
    • A. 

      One way ANOVA

  • 18. 
    Overall variation in the scores calculated from the scores of all of the participants is known as
    • A. 

      Total variance

  • 19. 
    What is the formula for total variance
    • A. 

      Between group variance divided by within group variance

  • 20. 
    What is a variance estimate?
    • A. 

      Mean square

  • 21. 
    How do you convert the between and within groups variation into mean squares?
    • A. 

      By dividing them by their degrees of freedom

  • 22. 
    What does ANOVA stand for?
    • A. 

      Analysis of Variance

  • 23. 
    What does mean square measure
    • A. 

      The average amount of variable

  • 24. 
    How do you determine the degrees of freedom in an ANOVA test?
    • A. 

      Levels minus 1

  • 25. 
    How do you determine the degrees of freedom in a t-test
    • A. 

      Sample size minus 1

  • 26. 
    How do you determine the degrees of freedom in a within subject design
    • A. 

      Participants minus levels

  • 27. 
    What is the formula for mean square between?
    • A. 

      Between groups variation divided by degrees of freedom.

  • 28. 
    What is the formula for the f-ratio in a one-way between group ANOVA?
    • A. 

      Ms between divided by ms within

  • 29. 
    What does the f-ratio equal if there is no treatment effect
    • A. 

      1

  • 30. 
    What does stastical conclusion refer to?
    • A. 

      Wether or not you reject the null?

  • 31. 
    What is the formula for the F ratio in an ANOVA within group subjects design?
    • A. 

      The between conditions divided by error rate

  • 32. 
    How many IV's are in a two-way ANOVA?
    • A. 

      2

  • 33. 
    What type of design does a two way ANOVA collect data from?
    • A. 

      Factorial

  • 34. 
    What does factorial mean?
    • A. 

      The variables are between

  • 35. 
    The effect of one level of the IV is dependent on another level of another IV is called
    • A. 

      Interaction variation

  • 36. 
    Total variation in a two-way ANOVA is broken into what 3 areas
    • A. 

      Between variation for each IV, Interaction Variation, & measure of chance.

  • 37. 
    How do you determine what kind of number a factorial design is?
    • A. 

      The level of one IV multiplied by the level of another IV

  • 38. 
    Multiplying the degrees of freedom of one variable by the degrees of freedom of another freedom is called
    • A. 

      The interaction of degrees of freedom

  • 39. 
    What are the three types of ANOVAs?
    • A. 

      Between, within and factorial

  • 40. 
    What is a type I error?
    • A. 

      Falsely reject the Null

  • 41. 
    Which error type is the worse?
    • A. 

      Type I

  • 42. 
    What is the power affected by
    • A. 

      Alpha level, sample size and treatment effect.

  • 43. 
    What does effect size say?
    • A. 

      How much can one variable explain the difference