| A | B |
|---|
| descriptive statistics | consists of two basic categories of measures: measures of central tendency and measures of variability (or spread) |
| measures of central tendency | mean, median, and mode |
| mean | is the average of a set of scores. |
| median | is the middle score of distribution when organized smallest to largest |
| mode | is the most frequently recurring score. |
| Standard deviation | is a measure of how far away, on average, the data is from the mean. |
| range | the difference between the highest number (maximum) and the lowest number (minimum) in the data set |
| frequency distribution | a breakdown of how the scores fall into different categories or ranges. |
| Z score | The Z score tells how many standard deviations a score is above or below the mean. |
