Match

Chapter 2: Variability and Z-Scores

Variability Fundamentals

Set 1 of 4
Continuous Scale
Range (Continuous Data)
Limitation of the Range
Purpose of Reporting Variability
Variability
Condition for Calculating Variability
Sum of Squares (SS)
Calculated as the maximum score plus 0.5, minus the minimum score minus 0.5.
Tells the reader whether the accompanying average is a good or weak representation of the data.
It only considers the two extreme data points, potentially providing a distorted picture of data spread.
The dependent variable must be measured on a continuous scale, such as interval or ratio.
The total sum of the squared deviations of individual scores from the mean.
A measurement scale that has decimal points between absolute numbers, requiring bars to touch in a histogram.
Refers to how spread out individual scores are around the average in a dataset.