About This Chapter
Overview of Measurement in Research - Chapter Summary
The entertaining video lessons in this chapter provide a comprehensive overview of measurement in research. Boost your confidence as a researcher by strengthening your knowledge of qualitative and quantitative measurement, the validity of measurement and research measurement scales. This chapter also ensures you grasp various methods for improving measurement reliability and the relationship between reliability and validity.
Feel free to access these video lessons whenever and wherever your schedule allows using any computer or mobile device with Internet access. Full transcripts are available that let you print or read the materials online. Short quizzes and a practice exam enable you to quickly and effectively gauge your comprehension of measurement in research.
How It Helps
- Refreshes your knowledge: This chapter offers a fun and informative refresher of important measurement in research topics.
- Strengthens research skills: The lessons offer definitions, examples and other important details about measurement in research that can help you become a stronger researcher.
- Offers convenience: Enjoy the convenience of accessing a comprehensive and reliable overview of measurement in research in one location.
Reviewing this chapter will ensure you're able to:
- Discuss the importance of measurement in research
- List and describe commonly used research measurement scales
- Differentiate between qualitative and quantitative measurement
- Share the meaning of a qualitative variable in statistics
- Explain the importance of reliability in measurement
- Identify and describe methods for improving measurement reliability
- Describe validity and its importance in measurement
- Detail the relationship between validity and reliability
1. The Importance of Measurement in the Research Process
Why is it important to measure variables in a study? And, how do you go about doing it? In this lesson, we'll examine the importance of measurement, along with some common types of psychological measurement.
2. Commonly Used Research Measurement Scales
How do you measure a person's thoughts or feelings when you can't see them? In this lesson, we'll look at common measurement scales that psychologists use when examining thoughts and feelings.
3. The Difference Between Qualitative & Quantitative Measurement
In research, there are generally two types of data. In this lesson, we'll look at quantitative and qualitative measurement, when each are used, and how researchers can sometimes use both.
4. Qualitative Variable in Statistics: Definition & Examples
Being able to define and identify a qualitative variable is key to understanding statistics. Learn what a qualitative variable is, how it can be described, and review examples.
5. The Reliability of Measurement: Definition, Importance & Types
Psychologists use tools like surveys and tests to measure psychological traits. But, what happens when a measurement tool is not consistent? In this lesson, we'll examine what reliability is, why it is important, and some major types.
6. Methods for Improving Measurement Reliability
Reliability is the consistency of the results of a measurement tool. But, what causes a tool to have low reliability? And, what can be done to improve reliability? In this lesson, we'll answer both of those questions.
7. The Validity of Measurement: Definition, Importance & Types
How do you know if you are measuring what you actually want to measure? In this lesson, we'll look at what validity is, why it is important, and four major types of validity: face, construct, content, and predictive validity.
8. The Relationship Between Reliability & Validity
Though reliability and validity are different from each other, they are still related. In this lesson, we'll look at the differences of and relationship between reliability and validity.
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Other chapters within the Research Methods in Special Education course
- Research Foundations for Education
- Developing a Research Plan
- Data Collection Methods & Techniques
- Single-Subject Research Designs
- Experimental & Quasi-Experimental Designs
- Sampling and Generalization
- Internal Validity in Research
- External Validity
- Statistical Analysis: Descriptive & Inferential Statistics
- Qualitative Research Methods and Design
- Issues in Ethical Research