Question

Dr. williamson discovered that the latest depression instrument had a weak correlation when administered over time to the same patients. the test lacked:

Answer 1

The answer to this question would be precision

If the test has high precision, the result of the repeated test would have a close value together. In this case, the test is used repeatedly on the same patient but it has a weak correlation. That means the test is not precise, so the same condition did not give the same result.