SPM – MCQ 58 – Test validity and reliability

Using a new technique, Hb was estimated in a blood sample. The test was repeated for 10 times. The reports were : 9.5, 9.2, 9.4, 9.6, 9.7, 9.9, 10.2. 10.3, 10.5, 12.1. Accurate value of Hb was estimated by standard tests to be 10.2. The new technique has
a) High validity and high reliability
b) Low validity and low reliability
c) High validity and low reliability
d) Low validity and high reliability

Correct answer : b) Low validity and low reliability

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