Ch 9: Measurement in Research

Watch these video lessons and learn about measurement in research. Each lesson is accompanied by a short multiple-choice quiz to help check your understanding of conceptualization, discrete variables, quantitative measurement and more.

Measurement in Research - Chapter Summary and Learning Objectives

Do you understand the importance of measurement in psychological research? Through this online chapter, you'll come to understand that the type of measurement you use will affect the conclusions you can draw from your research. You'll learn the difference between qualitative and quantitative measurement and explore various levels of measurement. After completing this chapter, you'll be able to do the following:

• Differentiate between continuous and discrete variables
• Identify various types of reliability, including interim, interrater and test-retest
• Discuss different kinds of validity, such as construct, content, face and predictive

VideoObjective
The Importance of Measurement in the Research ProcessExplain why measurement is an important part of the research process.
The Difference Between Qualitative & Quantitative MeasurementDifferentiate between qualitative and quantitative measurement.
Conceptualization & Operationalization in MeasurementDefine and discuss conceptualization and operationalization in measurement.
Continuous & Discrete Variables: Definition & ExamplesDefine and discuss continuous and discrete variables.
Scales of Measurement: Nominal, Ordinal, Interval & RatioDefine and discuss various levels of measurement, including nominal, ordinal, interval and ratio.
Commonly Used Research Measurement ScalesDiscuss some commonly used scales, including Likert scaling, Thurstone scaling, Bogardus social distance scaling, Semantic Differential and Guttman scaling.
The Reliability of Measurement: Definition, Importance & TypesDefine reliability and its importance in the context of measurement. Discuss the various types of reliability.
Methods for Improving Measurement ReliabilityDiscuss methods for improving reliability.
The Validity of Measurement: Definition, Importance & TypesDefine validity and its importance in the context of measurement. Discuss the various types of validity.
The Relationship Between Reliability & ValidityExplain the relationship between reliability and validity.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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