|
 |  Psychological Testing and Assessment: An Introduction To Tests and Measurement, 5/e Ronald Jay Cohen
Mark Swerdlik
A Statistics Refresher
Chapter Outline
Scales of Measurement Nominal Scales Ordinal Scales Interval Scales Ratio Scales Measurement Scales in Psychology |
| | | Describing Data Frequency Distributions Measures of Central Tendency The arithmetic mean The median The mode Measures of Variability The range The interquartile and the semi-interquartile range The average deviation The standard deviation and variance Skewness Kurtosis |
| | | The Normal Curve Area Under the Normal Curve |
| | | Standard Scores z Scores T Scores Other Standard Scores Normalized standard scores |
| | | CLOSE-UP The Normal Curve and Psychological Tests |
| | | EVERYDAY PSYCHOMETRICS Consumer (of Graphed Data), Beware! |
|
|
2002 McGraw-Hill Higher Education