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Psy302 Quantitative Methods
QUIZ CHAPTER THREE
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middle, most, and average average, middle, and most
1. What terms refer to each of the following measures, respectively: mean, median, and mode. middle, most, and average average, middle, and most average, most, and middle most, average, and middle
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middle, most, and average average, middle, and most
1. What terms refer to each of the following measures, respectively: mean, median, and mode. middle, most, and average average, middle, and most average, most, and middle most, average, and middle
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2. The size of a sample is represented by:
ss n π
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2. The size of a sample is represented by:
ss n π
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3. A researcher records 52 scores
3. A researcher records 52 scores. What is the median position of these scores? the 26th score in numeric order the average of the 26th and 27th scores in numeric order the 27th score in numeric order It's not possible to know this without the raw scores.
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3. A researcher records 52 scores
3. A researcher records 52 scores. What is the median position of these scores? the 26th score in numeric order the average of the 26th and 27th scores in numeric order the 27th score in numeric order It's not possible to know this without the raw scores.
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4. The ________ is the middle value in a distribution of scores that are listed in numeric order.
mean median mode range ogive
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4. The ________ is the middle value in a distribution of scores that are listed in numeric order.
mean median mode range ogive
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5. Which of the following will decrease the value of the mean?
deleting a score below the mean adding a score below the mean adding a score exactly equal to the mean none of the above
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5. Which of the following will decrease the value of the mean?
deleting a score below the mean adding a score below the mean adding a score exactly equal to the mean none of the above
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6. Locating a single score that is most representative or descriptive or all scores in a distribution is called: the population central tendency a histogram counts all of the above
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6. Locating a single score that is most representative or descriptive or all scores in a distribution is called: the population central tendency a histogram counts all of the above
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7. The fact that the sum of the differences of scores from their mean is zero best illustrates that
the mean is at the center of a distribution the mean is the “balance point” of a distribution the mean is equal to zero the mean can never be negative
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7. The fact that the sum of the differences of scores from their mean is zero best illustrates that
the mean is at the center of a distribution the mean is the “balance point” of a distribution the mean is equal to zero the mean can never be negative
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8. A researcher records the time (in seconds) that participants arrive late for a study. Assuming these data are normally distributed, which measure of central tendency is most appropriate to describe these data? mean median mode range ogive
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8. A researcher records the time (in seconds) that participants arrive late for a study. Assuming these data are normally distributed, which measure of central tendency is most appropriate to describe these data? mean median mode range ogive
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8. A researcher records the time (in seconds) that participants arrive late for a study. Assuming these data are positively skewed, which measure of central tendency is most appropriate to describe these data? mean median mode range ogive
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8. A researcher records the time (in seconds) that participants arrive late for a study. Assuming these data are positively skewed, which measure of central tendency is most appropriate to describe these data? mean median mode range ogive
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9. The distribution of personal income for U. S
9. The distribution of personal income for U.S. citizens is positively skewed. If the median annual income is $44,000, this implies that the mean annual income is smaller larger the same There is not enough information to answer this question
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9. The distribution of personal income for U. S
9. The distribution of personal income for U.S. citizens is positively skewed. If the median annual income is $44,000, this implies that the mean annual income is smaller larger the same There is not enough information to answer this question
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10. A _____ skewed distribution is where a few outliers are substantially larger than most other scores. largely hypothetically positively gratuitously badly
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10. A _____ skewed distribution is where a few outliers are substantially larger than most other scores. largely hypothetically positively gratuitously badly
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The End
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