1. Which is the average score in a skewed distribution:
- correlation
- median
- mean
- mode
2. The median is a measure of:
- central tendency
- stratification
- dispersion
- skew
3. Which statistic should you calculate to test for commonality:
- correlation
- regression
- ANOVA
- t-test
4. What do you do if the calculated value is close to but not quite at the critical value:
- partition the null
- stratify the null
- accept the null
- reject the null
5. A distribution with the mode higher than the mean is:
- negatively skewed
- positively skewed
- bimodal
- normal
6. Given the following information:
- SSx = 44.7
- stdevY = 3
- r = .4
- t= 2.73
Calculate the coefficient of nondetermination:
7. Given the following information, calculate F:
SS df ms
Between 120 2
Within 24 12
Total 144. 14
F =
8. Intelligence tests primarily use what level of measurement:
- nominal
- ordinal
- interval
- ratio
9. A standard deviation is the:
- square root of variance
- sum of squared-Xs
- percentage of variance understood
- tangent of slope
10. The 95th percentile corresponds which z score:
- – 1.5
- – 1.0
- + 1.64
- + 1.96
Answers after this graphic!
Answers
1. Which is the average score in a skewed distribution:
- correlation
- median
- mean
- mode
2. The median is a measure of:
- central tendency
- stratification
- dispersion
- skew
3. Which statistic should you calculate to test for commonality:
- correlation
- regression
- ANOVA
- t-test
4. What do you do if the calculated value is close to but not quite at the critical value:
- partition the null
- stratify the null
- accept the null
- reject the null
5. A distribution with the mode higher than the mean is:
- negatively skewed
- positively skewed
- bimodal
- normal
6. Given the following information:
- SSx = 44.7
- stdevY = 3
- r = .4
- t= 2.73
Calculate the coefficient of nondetermination: 1-rSquared = .84
17. Given the following information, calculate F:
SS df ms
Between 120 2. 60
Within 24 12 2
Total 144. 14
F = 30
8. Intelligence tests primarily use what level of measurement:
- nominal
- ordinal
- interval
- ratio
9. A standard deviation is the:
- square root of variance
- sum of squared-Xs
- percentage of variance understood
- tangent of slope
10. The 95th percentile corresponds which z score:
- – 1.5
- – 1.0
- + 1.64
- + 1.96
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