Yusoff et al. (Content Validity) Flashcards
Five sources of validity evidence
Content, Response process, Internal structure, Relation to other variables, and Consequence.
Content validity
Degree to which elements of an assessment tool are relevant and representative of the targeted construct.
Assessment instrument
Method of acquiring data (e.g., questionnaires)
Elements
Aspects like items, response formats, and instructions.
Assessment purpose
The function of the tool (e.g., MSSQ measures stress in medical students, AEEMI measures anatomy education environments)
Relevance of assessment tool
Appropriateness of the tool for the construct.
Representativeness of assessment tool
Proportionality of elements to facets of the construct.
Content Validity Index (CVI)
Used to quantify content validity.
Aim of the paper
Describe the best practices for quantifying content validity using Content Validity Index (CVI).
Six steps involved in content validation (6)
- Preparing content validation form
- Selecting a review panel of experts
- Conducting content validation
- Reviewing domain and items
- Providing score on each item
- Calculating CVI
Step 1 & Guidelines
Preparing Content Validation Form
Ensure clarity in the form for expert review. Clear expectation and understanding about the task.
-> Provide instructions and a rating scale (e.g., relevance scale).
-> Definitions of domains must be clear to aid experts in scoring.
Step 2 & Guidelines
Selecting a Review Panel of Experts. Experts are selected based on their expertise in the topic.
What’s the MINIMUM RECOMMENDED NUMBER OF EXPERTS
6 to 10
-> At least 6 experts are considered ideal for robust content validation.
-> 2 experts = minimum acceptable
Step 3 & Guidelines
Conducting Content Validation. Face-to-faceornon-face-to-face.
Step 3: Conducting Content Validation
Pros & Cons of Face-to-face approach
Pros: Higher response rate.
Cons: Costly, time-consuming, hard to organize.