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Topics from your homework you'll be able to complete:
- Measurement's importance in the research process
- Qualitative vs. quantitative measurement
- Conceptualization and operationalization
- Continuous, discrete and categorical variables
- Scales of measurement
- Types of tests
- Various types of measurement
- Common research measurement scales
- Measurement reliability and ways it can be improved
- The validity of measurement
- The reliability and validity relationship
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. 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.
3. Conceptualization & Operationalization in Measurement
When designing a study, how do you make sure that everyone knows what you're talking about? How do you measure things that seem difficult to measure? In this lesson, we'll look at two key steps in research: conceptualization and operationalization.
4. Continuous, Discrete & Categorical Variables: Definition and Examples
When doing research, variables come in many types. In this lesson, we'll explore the three most common types of variables: continuous, discrete, and categorical.
5. Scales of Measurement: Nominal, Ordinal, Interval & Ratio
When doing research, variables are described on four major scales. In this lesson, we'll look at the major scales of measurement, including nominal, ordinal, interval, and ratio scales.
6. Types of Tests: Norm-Referenced vs. Criterion-Referenced
What's the best way to score tests? In this lesson, we'll look at two major types of tests that are scored differently from each other: norm-referenced and criterion-referenced tests.
7. Types of Measurement: Direct, Indirect & Constructs
How do you measure psychological traits? In this lesson, we'll look at how psychologists measure traits, including direct and indirect observation. We will also explore why psychological traits are so difficult to measure.
8. 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.
9. 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.
10. 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.
11. 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.
12. 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.
13. Clinical Significance vs. Statistical Significance
What does it mean if the results of a study are significant? In this lesson, we'll about the difference between statistical significance and clinical significance, and what this means for applying the results of research to the real world.
14. Clinical Significance: Definition & Example
There are a myriad of treatments available, but how effective are they really? If a treatment is clinically significant, it has been determined that it is capable of bringing a client back to a relative normal functioning, or at least a marked improvement. Learn the definition and examples in this lesson.
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Other chapters within the Research Methods in Psychology: Homework Help Resource course
- Introduction to Research Methods: Homework Help
- Principles of Ethical Research: Homework Help
- Setting Up the Research Study: Homework Help
- Data Collection Techniques in Psychology: Homework Help
- Nonexperimental Research: Homework Help
- Qualitative Research Methods and Design: Homework Help
- Quasi-Experimental Research: Homework Help
- Sampling and Generalization: Homework Help
- Internal Validity in Research: Homework Help
- External Validity: Homework Help
- Experimental Design: Homework Help
- Descriptive Statistics in Psychology: Homework Help
- Inferential Statistics in Psychology: Homework Help
- Evaluating Research Findings: Homework Help