● simply describes data.
● do not allow for conclusions.
● includes measures of central tendency, measures of variance, frequency
distributions, normal distributions, and skewed distributions.
, MEASURES OF CENTRAL TENDENCY
MODE: is the most frequently occurring score in a data set.
MEDIAN: the middle number in a set of scores. You calculate the median by determining the
point in distribution at which half of the scores fall above and half below.
MEAN: the average number in a data set.
Mean, median, and mode characterize the typical value in a set of data (remember, data can
be bimodal, trimodal, etc.)