quiz chapter four
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Psy302 Quantitative Methods. QUIZ CHAPTER FOUR. 1. Variability is a measure of:. spread central tendency popularity the middle all of the above. 1. Variability is a measure of:. spread central tendency popularity the middle all of the above. - PowerPoint PPT PresentationTRANSCRIPT
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QUIZ CHAPTER FOUR
Psy302 Quantitative Methods
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1. Variability is a measure of:
A. spreadB. central tendencyC. popularityD. the middleE. all of the above
![Page 3: QUIZ CHAPTER FOUR](https://reader035.vdocuments.net/reader035/viewer/2022081503/56816699550346895dda8620/html5/thumbnails/3.jpg)
1. Variability is a measure of:
A. spreadB. central tendencyC. popularityD. the middleE. all of the above
![Page 4: QUIZ CHAPTER FOUR](https://reader035.vdocuments.net/reader035/viewer/2022081503/56816699550346895dda8620/html5/thumbnails/4.jpg)
2. The ____ is the simplest way to describe how dispersed or spread out scores are. It involves the difference between the largest value and the smallest value.A. meanB. rangeC. modeD. standard
deviationE. sum of squares
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2. The ____ is the simplest way to describe how dispersed or spread out scores are. It involves the difference between the largest value and the smallest value.A. meanB. rangeC. modeD. standard
deviationE. sum of squares
![Page 6: QUIZ CHAPTER FOUR](https://reader035.vdocuments.net/reader035/viewer/2022081503/56816699550346895dda8620/html5/thumbnails/6.jpg)
3. The range is seldom used as a primary measure of variability in research because:A. it is difficult to
computeB. it is highly skewedC. it measures
central tendencyD. it is based on two
valuesE. all of the above
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3. The range is seldom used as a primary measure of variability in research because:A. it is difficult to
computeB. it is highly skewedC. it measures
central tendencyD. it is based on
two valuesE. all of the above
![Page 8: QUIZ CHAPTER FOUR](https://reader035.vdocuments.net/reader035/viewer/2022081503/56816699550346895dda8620/html5/thumbnails/8.jpg)
4. The mean is not used as a primary measure of variability in research because:A. it is difficult to
computeB. it is highly skewedC. it measures
central tendencyD. it is based on two
valuesE. all of the above
![Page 9: QUIZ CHAPTER FOUR](https://reader035.vdocuments.net/reader035/viewer/2022081503/56816699550346895dda8620/html5/thumbnails/9.jpg)
4. The mean is not used as a primary measure of variability in research because:A. it is difficult to
computeB. it is highly skewedC. it measures
central tendency
D. it is based on two values
E. all of the above
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5. Which of the following is an example of a distribution with NO variability?
A. scores: 3, 5, 4, 4, 5, and 3
B. scores: 3, 3, 3, 3, 33, and 3
C. scores: 1, 2, 3, 4, 5, and 6
D. scores: 5, 5, 5, 5, 5, and 5
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5. Which of the following is an example of a distribution with NO variability?
A. scores: 3, 5, 4, 4, 5, and 3
B. scores: 3, 3, 3, 3, 33, and 3
C. scores: 1, 2, 3, 4, 5, and 6
D. scores: 5, 5, 5, 5, 5, and 5
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6. The degrees of freedom for the sample variance:
A. are equal to the sample size
B. are equal to the sample size minus one
C. can vary between – and +
D. both B and C
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6. The degrees of freedom for the sample variance:
A. are equal to the sample size
B. are equal to the sample size minus one
C. can vary between – and +
D. both B and C
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7. Which of the following is true?
A. the standard deviation measures central tendency
B. the mean measures variabilityC. the standard deviation is always
positiveD. the standard deviation is used to
describe qualitative dataE. all of the above
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7. Which of the following is true?
A. the standard deviation measures central tendency
B. the mean measures variabilityC. the standard deviation is always
positiveD. the standard deviation is used to
describe qualitative dataE. all of the above
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8. Which of the following is a measure of spread or variability?
A. meanB. ogiveC. varianceD. square rootE. skewness
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8. Which of the following is a measure of spread or variability?
A. meanB. ogiveC. varianceD. square rootE. skewness
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9. Which shows more size variablity, the 6 boats or the 15 ducklings?
A. the boatsB. the ducksC. they are the sameD. all of the above
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9. Which shows more size variablity, the 6 boats or the 15 ducklings?
A. the boatsB. the ducksC. they are the sameD. all of the above
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10. The empirical rule states that for any normally distributed set of data, 99.7% of values lie within ____ of the mean.A. 3 standard
deviationsB. 6 raw score unitsC. rangeD. sight E. all of the above
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10. The empirical rule states that for any normally distributed set of data, 99.7% of values lie within ____ of the mean.A. 3 standard
deviationsB. 6 raw score unitsC. rangeD. sight E. all of the above
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The End