Answer:
Reliability
Step-by-step explanation:
A science teacher is unsure about the scores for the second batch of tests. Student scores on this last test are not at all similar to their scores on the test conducted two weeks ago. The teacher is confronted with RELIABILITY as a problem with testing.
RELIABILITY is the degree to which an assessment tool produces stable and consistent results.
Types of Reliability includes Test retest reliability which is a measure of reliability obtained by administering the same test twice over a period of time to a group of individuals.