Measurement Validity

Criminal Research Applications homework. Please take a look at the attached file and answer the questions acoordingly.
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Measurement Validity
Competencies Addressed in This Discussion
?
?
Competency 2: Articulate a problem statement appropriate for examination using criminal justice research
methods.
Competency 5: Differentiate between reputable and nonreputable criminal justice research resources.
Introduction
As you learned in Chapter 4 of your Fundamentals of Research in Criminology and Criminal Justice, an
empirical measure of validity adequately reflects the meaning of the concept under consideration. When
considering the issue of conceptualization, it is more difficult to demonstrate that individual measures are
valid. For example, face validity offers empirical measures that may or may not jibe with common
agreements and individual mental images about a particular concept. Criterion-related validity relies on
comparing a measure with some external criterion. Measures can be validated by showing that it predicts
scores on another measure that is generally accepted as valid. With discriminant validity, the measure of a
concept is different from measures of similar but distinct concepts. Conceptual definitions offer a working
definition specifically assigned to a term. This specification of conceptual definitions does two important
things. It serves as a specific working definition presented so readers understand the concept and focuses
observational strategy. It is operational definitions that spell out precisely how the concept will be
measured; a description of the operations undertaken in measuring a concept.
In your main post:
1. Develop a narrowly focused concept, such as poverty, depression, or social support to test its validity.
2. Explain your chosen concept.
3. Identify three empirical research articles using a library search to find the most valid measure of your
chosen concept.
4. Summarize your findings based on your empirical research.
5. Explore how valid the measure is and the basis for your rating of validity.
Discussion Objectives
The competencies in this discussion are supported by discussion objectives.
?
o
?
o
o
o
o
Competency 2: Articulate a problem statement appropriate for examination using criminal justice research
methods.
Develop a narrowly focused concept to test its validity.
Competency 5: Differentiate between reputable and nonreputable criminal justice research resources.
Explain your chosen concept.
Identify three empirical research articles using a library search to find the most valid measure of your
chosen concept.
Summarize your findings based on your empirical research.
Explore how valid the measure is and the basis for your rating of validity.

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