Karteikarten
AGEE 644 Class 2
Karten in diesem Stapel (21)
- 1Indexes such as mean, median, and mode that are used to summarize dataMeasure of Central Tendency
- 2This is the most widely used measure of central tendencyMean
- 3Type of central tendency, the sum of all scores in a distribution divided by the number of casesMean
- 4Type of central tendency, defined as the point in a distribution of measures below which of the cases lie, and the other 50 percent lie above this point.Median
- 5Type of central tendency, defined as the value in a distribution that occurs most frequentlyMode
- 6A distribution with two modes is calledBimodal
- 7The ______ is the least useful indicator of central value in a distributionMode
(it is unstable, and could have more than one mode) - 8A mode may be reported for any scales of measurement, but it is the only measure of central tendency that can be used with ____________Nominal scales
- 9This measure of central tendency is generally the most precise, it takes into account the value of every scoreMean
- 10In a ___________ ________, the values of the mean and the median coincide. If the distribution has a single mode, all three indexes of central tendency will coincide.Symmetrical Distribution
- 11In a _______ ___________, the values of the measures of central tendency differ, and the distribution pulls out to one end or the other by the presence of extreme scores.Skewed Distribution
- 12Extreme values will affect the ______, but will have less of an effect on the _______, and no effect on the _________.Mean
Median
Mode - 13Skews are labeled according to where the extreme scores lie. "The _____ names the beast"Tail
- 14Three indexes that are used to describe distributions in terms of variation, spread, dispersion, heterogeneity, or scatter of scores are:Range
Variance
Standard Deviation - 15The difference between the upper real limit of the highest score and the lower real limit of the lowest scoreRange
- 16______ is an unreliable index of variability because it is based on only two values, the highest and the lowest. Not an indicator of the spread of scores. It's use is limited to inspectional purposes.Range
- 17What are the two most frequently used indexes of variability?Variance
Standard Deviation - 18Scores that show the difference between a raw score and the mean of the distributionDeviation Scores
- 19Scores below the mean will have ______ deviation scores.Negative
- 20The sum of the deviation scores in a distribution is always ___0
- 21Square each deviation score so that they all become positive numbers. Then sum the squared deviations and divide by the number of scores. This will give you the ________Variance
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- Beschreibung
- AGEE 644 Karteikarten am AGEE 644 Class 2, erstellt von Renee Conneway am 16/01/2018.
- Erstellt von
- Renee Conneway
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