Question

A group of students takes the same test of visual perception at the same time on two consecutive days. The students' scores are very different each time. This suggests that the test is not:
A. valid.
B. standardized.
C. reliable.
D. generalizable.

Answer 1

Answer:

C. Reliable

Explanation:

In studies, reliability refers to whether the study will arrive to the same conclusion if the study is repeated again again with same variables.

Failing to reach reability means that there are some unit of measurements that are changing within the study. As long as researchers do not find out what cause this, they wouldn't be able to make proper conclusion from the study.