A. Adequacy
B. Differentiability
C. Objectivity
D. Reliability
Answer is = A
That’s right! If the sample of questions in the test is sufficiently large enough, the quality of the test is likely referring to:
A. Adequacy
Here’s why the other options are not as directly related to the concept of a large question sample:
- Differentiability: While a large question pool can contribute to a test’s ability to differentiate between high and low achievers (by offering a wider range of difficulty levels), it’s not the sole factor. The quality of the questions themselves and how well they target the intended skills are also crucial.
- Objectivity: The size of the question pool doesn’t directly impact the objectivity of the test, which focuses on minimizing scoring bias. The format of the questions (multiple choice, true/false) and clear scoring rubrics are more important for objectivity.
- Reliability: Reliability is concerned with the consistency of scores, and a larger question pool can contribute to this in some cases. For instance, it allows for creating multiple test versions with equivalent difficulty levels. However, other factors like test design and administration also play a role in reliability.
Adequacy, in the context of test quality, often refers to the appropriateness and sufficiency of the test content. A test with an adequate question sample effectively covers the intended learning objectives or skills and provides a representative sample of the content domain being assessed. Here’s how a large question pool can contribute to adequacy:
- Content coverage: With more questions, the test can cover a wider range of topics or skills within the learning objectives.
- Reduced bias: A larger pool allows for selecting questions that are less likely to be biased towards a particular subtopic or question format.
- Multiple test versions: A large pool facilitates the creation of multiple test versions with equivalent difficulty levels, promoting fairness for test takers.
In conclusion, adequacy is the most fitting choice because it directly addresses the concept of having a sufficiently large and representative sample of questions that effectively covers the intended learning objectives. This ensures that the test accurately assesses the targeted knowledge or skills. It’s important to note that adequacy is just one aspect of test quality, and other factors like validity, reliability, and objectivity also play a significant role.