Measurement Validity

No plagiarism please.

Use the questions as headings within the writing. Be extremely thorough and think critically.

Hit distinguished on the scoring guide

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.

  • 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.

Use the 3 sentence method of creating a problem statement as explained in this article:

Hernon and Schwartz’s 2007 article “What Is a Problem Statement?” in Library and Information Science Research, volume 29, issue 3, pages 307–309.

Scoring guide

Criteria Non-performance Basic Proficient Distinguished
Main Discussion Post Response (60%)
Apply critical thinking or problem solving in the main discussion post.
50%
Does not apply elements of critical thinking or problem solving in the main discussion post. Applies some elements of critical thinking or problem solving in the main discussion post. Applies critical thinking or problem solving in the main discussion post. Applies critical thinking or problem solving to the main discussion post in a comprehensive, step-by-step manner.
Use credible information or research to support positions, conclusions, or perspectives in the discussion.
10%
Does not use credible information or research to support positions, conclusions, or perspectives in the discussion. Responds to the discussion, but some or all of the resources used for support are not credible. Uses credible information or research to support positions, conclusions, or perspectives in the discussion. Uses well- developed, relevant support from credible resources or research to support positions, conclusions, or perspectives in the discussion and impartially considers conflicting data or other perspectives.

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