# Descriptive Statistics Flashcards

name of the computed average of a series of raw data

mean: groups / blocks data

name of the middle score of each block of trails after the scores within each block have been rank ordered

median: groups / blocks data

name of the score that occurs most often

mode: groups / blocks data

which two of the following are used when a set of scores is severely skewed: mean, median, mode

median and mode

name of the difference between the largest and smallest scores in a distribution plus 1

range: measures dispersion of data

name the computation:

(the sum of squared scores - the correction term) divided by N -1

variance

name the computation:

square root of the variance

standard deviation

name the computation:

the square of the sum of all scores divided by the total number of scores used in the computation

correction term

name the computation:

square root of… [(the sum of squared scores - the correction term)] divided by [N(N - 1)]

standard error of the mean