Measures of Central Tendency

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10 Terms

1
Mode
The most frequent score or observation in a data set.
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2
Median
The middle score in a sorted data set; if there is an even number of observations, it is the average of the two middle numbers.
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3
Mean
The average of a data set, calculated by dividing the sum of all scores by the number of scores.
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4
Outlier
A value significantly higher or lower than the rest of the data points in a data set.
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5
Trimmed Mean
A mean calculated after removing a specified percentage of the lowest and highest scores to reduce the impact of outliers.
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6
Central Tendency
A statistical measure that identifies a single score as representative of an entire distribution.
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7
Nominal Data
Categorical data without a defined order or ranking.
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8
Extreme Score
A data point that is far removed from other observations and can skew the results of statistical measures.
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9
Resistance to Outliers
A property of a measure of central tendency that indicates its ability to remain stable despite extreme scores.
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10
Interval Data
Numerical data where the difference between values is meaningful, but there is no true zero.
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