A new method of measuring Haemoglobin levels has been developed. Ten successive readings of a single sample are as follows: 9.4, 10.4, 9.6, 9.1, 10.8, 12.1, 10.1, 9.8, 9.2, 9.5. But the Haemoglobin measured by standard calorimetry was 10.2. Therefore the given method has
Correct Answer: High validity, low reliability
Description: Reliability is precision (repeatability) and Validity is accuracy (close to true/actual value)
In the given question, 10 successive readings are all different and they have a mean value of 9.4+10.4+9.6+9.1+10.8+12.1+10.1+9.8+9.2+9.5/10 = 10.0
Thus it has low reliability (non-consistent) and high validity (close to true/actual value of 10.2)
Category:
Social & Preventive Medicine
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now