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24 Cards in this Set
- Front
- Back
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Mathematical procedures applief to data that aid us in organizing and making sense out of large amounts of information
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Statistics
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Mathematical procedures used to describe a set of data in a way making the data relatively easy to process
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Descriptive Statistics
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A method of showing data that is a list starting with the highest calue
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Frequency
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A graph used to demonstrate what can be found in a frequency distribution visually
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Frequency Polygon
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A way to describe the overall or general characteristics of a large data set with a single number
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Measures of General Tendency.
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What are the three Measures of Central Tendency?
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Mean, Median, Mode
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Will be less accurate if the data set contains an extreme score
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Mean
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It is best to use what when a data set contains a small number of extreme scores
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median
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This is highly accurate, but tends to be minimally informative and is rarely used by researchers
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mode
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Two measures that provide information about variation
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Range and standard deviation
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Tells us how much the scores in the ddata set differ from the meann of the data set.
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Standard Deviation
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A distiribution of scores
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Bell Curve
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refers to any general rule that is supported based on numerous studies
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Empirical Rule
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What are the four scales of measurement?
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Nominal, ordinal, interval, ratio
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Scale of measurement that has to do with names or categories, no scale is better in value than the others
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Nominal
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scale of measurement that is used when data are being ranked from highest to lowest. There is an unequal distance between the values in the data set.
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Ordinal
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There is not an equal distance between values in a ____ scale?
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Ordinal
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What type of scale has an equal distance between the values, with no real or absolute zero?
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Interval Scale
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What is a real zero?
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What you have when what you are measuring is non-existent.
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Which is the best scale of measurement?
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Ratio Scale
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Which scale has equal distances between the values and has a real zero
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Ratio Scales
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When two or more variables are related?
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Correlation
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Number used to express the strenght of the relationship between two variables
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Correlational Coefficient
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The closer the value of r is to 1.00
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the stronger the relationship between two variables is
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