Stats

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julidei
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153626
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Stats
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2012-05-12 22:17:31
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Stats
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  1. What value in a one way ANOVA indicates proportion of variance explained
    F
  2. The impact of the independent variable is represented in which statistic
    SSb
  3. What does the 'mean' in 'mean square' indicate
    An average measure of variance
  4. What does the one way in one way ANOVA indicate
    the fact that there is just one independent variable
  5. What is scale of the independent variable in ANOVA
    nominal
  6. What is scale of the independent variable in ANOVA
    nominal
  7. In an ANOVA what symbol is used to indicate the number of groups
    k
  8. What of the following is true in an ANOVA
    The SSw consists entirely of error variance
  9. The dependent variable in ANOVA must be at least of what scale
    nominal
  10. Which statistic is the ratio of treatment variance to error variance
    F
  11. what statistic measures within group variability in a z-score problem
    the standard error of the mean
  12. Which value measures sample variability in the distribution of sample means
    the standard deviation
  13. what value of z includes the middel 95% of thedistribution of sample means
    +/- 1.96
  14. when comparing the distribution of sample means to a distribution of individual scores, which is accurate
    omega does not equal omega means, mu equals mu means
  15. what is the scale of the data when students are identified according to major
    ratio
  16. which measure of central tendency is most affected by outliers
    mean
  17. if data have positive skew, what's the order of the central tendency measures from left to right
    mode, median, mean
  18. I have scores of 2, 3, 3, 4, 5, 6, 6, 6, 7. which value is the median
    5
  19. which is the only statistic that can be calculated for nominal scale data
    the mode
  20. increasing the number of scores near the mean has which effect
    the standard deviation will decrease
  21. the vertical height of the line in a frequency distribution indicates which
    the number of cases of a particular score
  22. a distribution has s=3.0 and R=24. Which is accurate?
    The distribution is leptokurtic
  23. which statistic measures within group variability in a z score problem
    the standard error of the mean
  24. which value measures sample variability in the distribution of the sample means
    the standard error of the mean omega means
  25. what is the lowest value omega squared can have
    0
  26. SEm is a statistic. what is the equivalent parameter
    omega means
  27. failing to reject the null hypothesis is the same as acknowledging which
    differences are likely just random
  28. there are many t distributions. each is defined by which
    degrees of freedom
  29. which statistics is described as 'an estimate of pooled variance'?
    the standard error of difference
  30. which of the following estimates the standard deviation of all 'difference' scores
    SEd
  31. the standard error of the mean measures variability from what sources
    the variability within one group
  32. which of the following defines alpha (type 1) error
    rejecting the null when there is no difference
  33. which of the following will increase the value of t in an independent t-test
    rejecting the null when there is no difference
  34. if you test at p=.05 and reject the null hypothesis, what's the probability of a error
    .05
  35. if you test at p=.05 and reject the null hypothesis, what's the probability of B error
    0
  36. the one sample t-test answers which question
    does the sample belong to the described population
  37. the point of calculating an effect size is which
    to determine the practical importance of the result
  38. why do critical values decrease as degrees of freedom increase
    because the sample becomes more normal as df increases
  39. the confidence interval indicates which
    the range within which the true value is likely to occur

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