statistics - central tendency
About this set
Created by:
thumpaholden Plus on February 10, 2011
Subjects:
Log in to favorite or report as inappropriate.
Order by
18 terms
Terms | Definitions |
|---|---|
 proportion | In a frequency distribution table, what does f/N represent? |
| measure of central tendency | The most typical or representative score |
| population mean | What does this variable represent: µ ? |
| Yes | When calculating the median of a sample with an even number of scores, do you find the arithmetic average of the two middle scores? |
| mode | The score or category that has the greatest frequency |
| mean | Which measure of central tendency is most commonly used? |
| extreme scores or skewed distributions | When do we use the median as the measure of central tendency? 1) _______, 2) when there are items with undetermined values or open ended distributions (eg >2) 3) Ordinal scale |
| when there are items with undetermined values or open ended distributions (eg >2) | When do we use the median as the measure of central tendency? 1) Extreme scores or skewed distributions, 2) _______ 3) Ordinal scale |
| ordinal scale | When do we use the median as the measure of central tendency? 1) Extreme scores or skewed distributions, 2) when there are items with undetermined values or open ended distributions (eg >2) 3) _______ |
| median | Which measure of central tendency do we use when reporting scores on an ordinal scale? |
| mode | Which measure of central tendency do we use when reporting scores on a nominal scale? |
| mode | Which measure of central tendency do we use when reporting scores on scale with discrete values (as opposed to continuous)? |
| changing any score in the distribution will change the mean | Characteristics of the mean 1) _________, 2) introducing or removing a score will change the mean (EXCEPTION: the score introduced or removed is equal to the mean) 3) if a constant is added/subtracted to/from each score in a distribution, the same constant will be added/subtracted to/from the mean 4) if every score is multiplied/divided by a constant, the mean will change in the same way |
| introducing or removing a score will change the mean (EXCEPTION: the score introduced or removed is equal to the mean) | Characteristics of the mean 1) changing any score in the distribution will change the mean, 2) _________ 3) if a constant is added/subtracted to/from each score in a distribution, the same constant will be added/subtracted to/from the mean 4) if every score is multiplied/divided by a constant, the mean will change in the same way |
| if a constant is added/subtracted to/from each score in a distribution, the same constant will be added/subtracted to/from the mean | Characteristics of the mean 1) changing any score in the distribution will change the mean, 2) introducing or removing a score will change the mean (EXCEPTION: the score introduced or removed is equal to the mean) 3) _________ 4) if every score is multiplied/divided by a constant, the mean will change in the same way |
| if every score is multiplied/divided by a constant, the mean will change in the same way | Characteristics of the mean 1) changing any score in the distribution will change the mean, 2) introducing or removing a score will change the mean (EXCEPTION: the score introduced or removed is equal to the mean) 3) if a constant is added/subtracted to/from each score in a distribution, the same constant will be added/subtracted to/from the mean 4) _________ |
| when reporting scores on a nominal scale | When do we use the mode as the measure of central tendency 1) _______, 2) when reporting scores on scale with discrete values |
| when reporting scores on scale with discrete values | When do we use the mode as the measure of central tendency 1) when reporting scores on a nominal scale, 2) _______ |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.