A. Validity
B. Differentiability
C. Objectivity
D. Reliability
Answer is = D
the quality of a test to yield similar scores when administered at different occasions is:
D. Reliability
Here’s why the other options are not directly related to the concept of consistent scores across administrations:
- Validity: Validity, as discussed earlier, focuses on whether the test measures what it claims to measure. A valid test can still be unreliable (scores vary) if it’s not well-designed or administered inconsistently.
- Differentiability: This refers to the ability of a test to distinguish between high and low achievers. While a reliable test might also be good at differentiating, reliability itself doesn’t guarantee this ability.
- Objectivity: Objectivity is concerned with the extent to which a test score is free from bias or the influence of the scorer. This is important, but it doesn’t directly address the consistency of scores across administrations.
Reliability, on the other hand, refers to the consistency of scores on a test. A reliable test yields similar results if administered multiple times under similar conditions (same instructions, time limits, scoring criteria). Here are some key aspects of reliability:
- Test-retest reliability: This assesses consistency by administering the same test to the same group at different points in time.
- Internal consistency: This evaluates whether different parts of the test (items) measure the same construct or skill consistently.
In conclusion, reliability is the most suitable choice because it directly addresses the characteristic of a test producing consistent scores when administered on different occasions. This ensures that the test is measuring something stable and that scores accurately reflect the underlying knowledge or skills being assessed.