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WorksheetsNET - CHAP 5 - PART 1
Total questions: 20
Worksheet time: 15mins
Name
Class
Date
1.
1. What statistical test would be used with ordinal data obtained from one sample?
a)
A. Kruskal-wallis
b)
B. Mann-whitney
c)
C. Friedman anova by ranks
d)
D. Spearman’s
2.
2. What statistical test would be used with interval or ration data with multiple dependent variables?
a)
A. Related t-tests
b)
B. Wilcoxon
c)
C. Repeated measures ANOVA
d)
D. MANOVA
3.
3. The measurement of variability which we use as a unit of the scale of measurement in a normal distribution is
a)
A. A.D
b)
B. Standard Deviation
c)
C. Range
d)
D. Quartile Deviation
4.
4. The average deviation is otherwise known as:
a)
A. Mean
b)
B. Median
c)
C. Mean Deviation (M.D)
d)
D. Standard Deviation (SD)
5.
5. A researcher measured the same group of people’s physiological reactions while watching horror films and compared them to when watching erotic films. The resulting data were skewed. What test should be used to analyze the data?
a)
A. a. Independent t-test
b)
B. Wilcoxon signed-rank test
c)
C. Dependent (related) t-test
d)
D. Mann–Whitney test
6.
6. The _______ test is calculated by taking the difference between two sets of scores and ranking them from highest to lowest.
a)
A. Wilcoxon signed test
b)
B. Independent t-test
c)
C. Mann-Whitney test
d)
D. Kruskal Wallis test
7.
7. Which of the following findings is not a correlation?
a)
A. As time spent revising increase the number of fails will decrease
b)
B. As download prices increase sales will decrease
c)
C. Women scored higher than men on narcissism
d)
D. As temperature increases ice-cream sales will also increase
8.
9. The level of significance can be viewed as the amount of risk that an analyst will accept when making a decision
a)
A. true
b)
B. false
c)
C. none
9.
10. The numerical facts such as measurement of height, weight and scores on intelligence are known as:
a)
A. Fact
b)
B. Data
c)
C. Scale
d)
D. Score
10.
11. The range of a sample gives an indication of the
a)
A. way in which the values cluster about a particular point
b)
B. number of observations bearing the same value
c)
C. maximum variation in the sample
d)
D. degree to which the mean value differs from its expected value.
11.
12. Which measure is the most unreliable indicator of central tendency if data are skewed?
a)
A. Mean
b)
B. Median
c)
C. Mode
d)
D. None of these
12.
13. What does a large standard deviation suggest?
a)
A. Scores are widely distributed and that the mean may not be a reliable measure of central tendency
b)
B. The scores are not widely distributed and the median would be an unreliable measure of central tendency
c)
C. All of the measures of central tendency would be reliable
13.
14. Normal Distribution is symmetric is about ___________
a)
A. Variance
b)
B. Mean
c)
C. Standard deviation
d)
D. Covariance
14.
15. The area under a standard normal curve is?
a)
A. 0
b)
B. 1
c)
C. ∞ (infinity)
d)
D. not defined
15.
16. The shape of the normal curve depends on its ___________
a)
A. Mean deviation
b)
B. Standard deviation
c)
C. Quartile deviation
16.
17. In Psychology and Education, we come across measurement data heavily dependent upon:
a)
A. Nominal Scale
b)
B. Ordinal Scale
c)
C. Interval Scale
d)
D. Ratio Scale
17.
18. Each of the following accurately represents characteristics of the Chi-Square distribution except for:
a)
A. It is a positively skewed distribution.
b)
B. As the degrees of freedom increase, the critical value of the chi-square distribution becomes larger.
c)
C. The region of rejection is always in the left-tail of the Chi-Square distribution.
d)
D. Its shape depends on the number of degrees of freedom
18.
19. An instructor records how long it takes students to finish a statistics test. If the times are normally distributed, which of the measures of central tendency would be most appropriate to use with this data?
a)
A. mode
b)
B. median
c)
C. mean
d)
D. interquartile range
19.
20. The point on the score scale which 50 per cent of the scores fall is called:
a)
A. Mean
b)
B. Mode
c)
C. Median
d)
D. None of the above
20.
21. If the scatter diagram is drawn the scatter points lie on a straight line then it indicates
a)
A. Skewness
b)
B. Perfect correlation
c)
C. No correlation
d)
D. None of the above
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