Chapter 3
Multiple Choice Questions
3.1 Which of the following is NOT a scale of measurement?
a. Nominal
b. Ordinal
c. Contemporary
d. Interval
e. Ratio
3.2 ________ data is categorical data.
a. Nominal
b. Ordinal
c. Interval
d. Ratio
3.3 Numbers on a football jersey are examples of _______ data.
a. Nominal
b. Ordinal
c. Interval
d. Ratio
3.4 _______ scales involve the rank order system.
a. Nominal
b Ordinal
c. Interval
d. Ratio
3.5 First place, second place and third place finishes are examples of ________ data
a. Nominal
b. Ordinal
c. Interval
d. Ratio
3.6 A ________ scale is one in which equal differences in scores represent equal differences in amount
of the property measured but with an arbitrary zero point.
a. Nominal
b. Ordinal
c. Interval
d. Ratio
3.7 Distance, weight and duration are all examples of _________ data
a. Nominal
b. Ordinal
c. Interval
d. Ratio
3.8 Which of the following is NOT a measure of central tendency:
a. Mean
b. Median
c. Mode
d. Range
3.9 The _______ is the mathematical average of the distribution of numbers.
a. Mean
b. Median
c. Mode
d. Range
3.10 The mean of the distribution 10, 5, 7, 3, and 5 is:
a. 4
b. 5
c. 6
d. 30
3.11 The _______ is greatly affected by extreme scores.
a. Mean
b. Median
c. Mode
d. All of the above are greatly affected by extreme scores
3.12 The _______ is the middle score in a distribution.
a. Mean
b. Median
c. Mode
d. Range
3.13 In the distribution 9,11,9,15 and 18, what is the median?
a. 15
b. 11
c. 10.5
d. 9
3.14 In the distribution 6, 8, 8, 10,11, 14, 17, the median is:
a. 11
b. 10
c. 10.5
d. 12
3.15 The ______ is less affected by extreme scores than the ______.
a. Mean/median
b. Median/mean
c. Mean/mode
d. Median/mode
3.16 The _______ is the number in the distribution that occurs most frequently.
a. Mean
b. Median
c. Mode
d. Range
3.17 In the distribution 9,11,9,15, and 20, what is the mode?
a. 9
b. 11
c. 15
d. 20
3.18 What is(are) the mode(s) in the following distribution? 9,12,9,12,13, and 20?
a. 9
b. 12
c. 9 and 12
d. 10.5
3.19 If in your distribution you have three or more modes, it is referred to as a
a. Bimodal distribution
b. Multimodal distribution
c. Non-discriminatory distribution
d. Truncated distribution
3.20 A ________ expresses how often a score occurs in a set of data.
a. Frequency distribution
b. Multimodal distribution
c. Non-discriminatory distribution
d. Truncated distribution
3.21 Which of the following is not normally a column when setting up a frequency distribution?
a. Test Score
b. Tally
c. Frequency
d. All of the above are normally columns used when setting up a frequency distribution
3.22 When setting up a frequency distribution it is very easy to calculate the _______ simply by
inspection.
a. Mean
b. Standard deviation
c. Mode(s)
d. Variance
3.23 The ________ of a distribution is the difference between the high score and the low score in the
distribution.
a. Mean
b. Median
c. Mode
d. Range
3.24 If we had a distribution of 9,11,13,18, and 50, what is the range?
a. 41
b. 51
c. 59
d. 20
3.25 For the following distribution, 30, 50, 45, 50, 25, 40, 10, 55, 65, 20, 60, 33, 45, 33, 20, the range is:
a. 50
b. 61
c. 55
d. 75
3.26 Which of the following is/are greatly affected by an extreme score?
a. Mean
b. Range
c. Mean and Range
d. Neither the mean nor the range
3.27 The ______ the spread, the _______ the variance.
a. Greater/greater
b. Greater/smaller
c. Smaller/greater
3.28 In a distribution with a variance of 25, the standard deviation would be
a. 25
b. 12.5
c. 5
d. Cannot be determined
3.29 In a distribution with a variance of 49, the standard deviation would be
a. 49
b. 24.5
c. 7
d. Cannot be determined
3.30 In a distribution with a variance of 64, the standard deviation would be
a. 64
b. 32
c. 8
d. Cannot be determined
3.31 If the standard deviation of a distribution is 9, then the variance is
a. 3
b. 49
c. 81
d. 100
3.32 If the standard deviation of a distribution is 6, then the variance is
a. 2.31
b. 30
c. 36
d. 66
3.33 If the standard deviation of a distribution is 4, then the variance is
a. 2
b. 16
c. 25
d. 40
3.34 In a normal distribution with a mean of 90 and a standard deviation of 10, approximately what
percentage of scores fall between 80 and 100?
a. 13.5
b. 34
c. 68
d. 95
3.35 In a normal distribution with a mean of 90 and a standard deviation of 10, approximately what
percentage of scores fall between 80 and 90?
a. 13.5
b. 34
c. 68
d. 95
3.36 In a normal distribution with a mean of 90 and a standard deviation of 10, what percentage of scores
fall between 80 and 110?
a. 13.5
b. 34
c. 68
d. 81.5
3.37 In a normal distribution with a mean of 90 and a standard deviation of 10, what percentage of scores
fall between 100 and 110?
a. 13.5
b. 34
c. 68
d. 95
3.38 In a normal distribution with a mean of 50 and a standard deviation of 5, what percentage of scores
fall between 45 and 55?
a. 13.5
b. 34
c. 68
d. 95
3.39 In a normal distribution with a mean of 50 and a standard deviation of 5, what percentage of scores
fall between 55 and 60?
a. 13.5
b. 34
c. 68
d. 95
3.40 In a normal distribution with a mean of 50 and a standard deviation of 5, what percentage of scores
fall between 55 and 65?
a. 13.5
b. 16
c. 68
d. 95
3.41 In a ________ skewed distribution the majority of scores fall below the mean.
a. Positively
b. Negatively
c. Both positively and negatively
d. Neither positively nor negatively
3.42 In a ________ skewed distribution the majority of scores fall above the mean.
a. Positively
b. Negatively
c. Both positively and negatively
d. Neither positively nor negatively
3.43 Correlations tell us the _________ between two variables.
a. Range
b. Standard deviation
c. Variance
d. Relationship
3.44 A _________ correlation has a direct relationship between the variables:
a. Positive
b. Negative
c. Zero
3.45 A _________ correlation has an indirect relationship between the variables:
a. Positive
b. Negative
c. Zero
3.46 A _________ correlation has no relationship between the variables:
a. Positive
b. Negative
c. Zero
3.47 As X increases, Y increases is an example of a ________ correlation.
a. Positive
b. Negative
c. Zero
3.48 As X increases, Y decreases is an example of a ________ correlation.
a. Positive
b. Negative
c. Zero
3.49 Correlations range from _______:
a. +1.00 to -1.00
b. -2.00 to +2.00
c. -3.00 to +3.00
d. 0.00 to +1.00
3.50 Which of the following is the strongest correlation?
a. +.50
b. -.85
c. +.71
d. -.34
3.51 Which of the following is the weakest correlation?
a. +.50
b. -.85
c. +.71
d. -.34
3.52 Correlations _______ indicate a cause and effect.
a. Always
b. Sometimes
c. Almost never
d. Never