A. Validity
B. Differentiability
C. Objectivity
D. Reliability
Answer is = A
“what it claims to measure” is referred to as:
A. Validity
Validity is a fundamental concept in testing and assessment. It essentially refers to the degree to which a test accurately reflects or measures what it is designed to measure. A valid test provides meaningful and trustworthy data about the construct or skill it aims to assess.
Here’s a breakdown of why the other options are not directly related to the concept of measuring what the test claims to measure:
- Differentiability: This term is not as commonly used in testing, but it can be loosely related to the ability of a test to distinguish between different levels of performance within a group. While a valid test might also be able to differentiate between students with varying abilities, differentiability itself is not the core concept of validity.
- Objectivity: Objectivity refers to the extent to which a test score is free from bias or the influence of the scorer. A well-designed objective test, like a multiple-choice exam with a clear key, aims to minimize the impact of the scorer’s personal judgment. However, objectivity doesn’t guarantee that the test is measuring what it claims to measure (validity).
- Reliability: Reliability focuses on the consistency of scores on a test. A reliable test yields similar results if administered multiple times under similar conditions. While reliability is important, it doesn’t ensure that the test is measuring what it claims to (validity). A test can be reliable (consistent scores) but still not valid (not measuring the intended construct).
In conclusion, validity is the most fitting choice because it directly addresses the core concept of whether a test measures what it purports to measure. It’s crucial for ensuring that test scores accurately reflect the knowledge, skills, or abilities being assessed.