Which of the following means the test items (questions) measure the knowledge in a consistent manner?

Reliability refers to the consistency of a test in measuring what it is intended to measure. When a test has high reliability, it means that if a student were to take the same test multiple times under the same conditions, they would receive similar scores each time. This consistency indicates that the test items are well-designed and that the assessment accurately reflects the knowledge or skills being evaluated without being influenced by external factors or random variations.

In contrast, validity involves whether the test measures what it claims to measure, analyzing if the content is appropriate for the intended purpose. Analysis is more about scrutinizing data or results rather than assessing consistency, and tactical refers to strategies or methods used in various situations, not specifically about measurement consistency. Thus, reliability is the most appropriate term when discussing the consistency of test items in measuring knowledge.