Final answer:
Increasing the number of test items, ensuring clarity and unambiguity in the items, and using a consistent scoring system can increase the reliability coefficient. However, simply increasing the time limit for completing the test does not directly enhance reliability.
Step-by-step explanation:
The reliability coefficient measures the consistency of a test or survey. To increase the reliability coefficient, there are certain strategies one can employ, but not all options provided will achieve this. The options mentioned are:
- Increase the number of items in the test
- Ensure that the items are clear and unambiguous
- Increase the time limit for completing the test
- Use a consistent scoring system
Options 1, 2, and 4 are effective ways to increase the reliability coefficient. However, option 3, increasing the time limit for completing the test, does not directly increase the reliability coefficient. It could reduce test-taker anxiety or fatigue, which indirectly might affect reliability, but it is not a direct way to increase the reliability coefficient. For increased reliability, it is crucial to focus on the quality and consistency of the test items and scoring procedures.