List of Figures
 
List of Tables
 
A Note to Students
 
Acknowledgments
 
1. What Is a Number? Is a Rose Always a Rose?
                              Some Final Thoughts About Scales of Measurement
 
 
                              Numbers and Response Formats
 
 
                              Some Final Thoughts About Response Formats
 
 
                              Numbers and Test Scores--How Do They Relate?
 
 
                              Some Final Thoughts About Measurement Scales and Response Formats
 
 
                              Models and Self-instructional Exercises
 
 
 
2. Frequencies: One Potato, Two Potato, Three Potato, Four
                              Ungrouped Frequency Distributions
 
 
                              Grouped Frequency Distributions
 
 
                              Cumulative Frequency Distribution
 
 
                              Some Final Thoughts About Frequency Distributions
 
 
                              Models and Self-instructional Exercises
 
 
 
3. The Distribution of Test Scores--The Perfect Body?
                              Some Final Thoughts About Distribution of Test Scores
 
 
                              Models and Self-instructional Exercises
 
 
 
4. Central Tendencies and Dispersion--Coming Together or Growing Apart
                              Central Tendencies--The Inner Core of the Normal Curve
 
 
                              Medians and Modes for Grouped Frequency Data
 
 
                              Some Final Points About Central Tendency
 
 
                              Dispersion--Not All Bodies Are the Same
 
 
                              Means and Standard Deviations in the Real World
 
 
                              Models and Self-instructional Exercises
 
 
                              Your New Best Friend--SPSS
 
 
 
5. Standardized Scores--Do You Measure Up?
                              Percentiles--What They Mean in Measurement
 
 
                              Percentile Ranks for Grouped Data
 
 
                              Some Final Thoughts About Percentile Ranks
 
 
                              Why Transform a Raw Score to a Z Score?
 
 
                              Models and Self-instructional Exercises
 
 
                              Your New Best Friend–SPSS
 
 
 
6. Norms and Criterion Scores--Keeping Up With the Joneses or Not
                              Criterion-Referenced Tests--Do You Know as Much as You Should?
 
 
                              Norm-Referenced Tests--Dying to Fit In
 
 
                              Models and Self-instructional Exercises
 
 
 
7. Error Scores--The Truth, the Whole Truth, and Nothing but the Truth?
                              Models and Self-instructional Exercises
 
 
 
8. Building a Strong Test--One the Big Bad Wolf Can’t Blow Down
                              Some Final Thoughts About Item Difficulty
 
 
                              Models and Self-instructional Exercises
 
 
 
9. Reliability--The Same Yesterday, Today, and Tomorrow
                              The Mathematical Foundation of Reliability
 
 
                              Types of Reliability Estimates
 
 
                              Standard Error of Measurement
 
 
                              Correlation Coefficients as Measures of Reliability
 
 
                              Some Final Thoughts About Reliability
 
 
                              Models and Self-instructional Exercises
 
 
 
10. Validity--What You See Is Not Always What You Get
                              Helping You Get What You See
 
 
                              Sources of Validity Evidence
 
 
                              The Marriage of Reliability and Validity--Wedded Bliss
 
 
                              Interpreting the Validity of Tests--Intended and Unintended Consequences
 
 
                              Some Final Thoughts About Validity
 
 
                              Models and Self-instructional Exercises
 
 
 
11. The Perils and Pitfalls of Testing--Being Ethical
                              Rights of Those Being Tested
 
 
 
Appendix
 
References
 
Index
 
About the Authors