M5. Criteria for assessing quality of measurement.

Question 1

Criteria for assessing quality of measurement?

Answer 1

1. Reliability.
2. Validity.

Question 2

measurements obtained are reproducible or repeatable

Answer 2

Reliability.

Question 3

measurements reflect the true values of the theoretical factors that the observed variable is supposed to measure

Answer 3

Validity.

Question 4

Types of Reliability:

Answer 4

1. Inter-observer reliability.
2. Intra-observer reliability.
3. Internal consistency (abstract factors).

Question 5

1. Across 2 or more observer.
2. Within the same person looking at the same data, giving same results.
3. Similarity among items of a composite measure.

Answer 5

1. Inter-observer reliability.
2. Intra-observer reliability.
3. Internal consistency (abstract factors).

Question 6

Types of Validity:

Answer 6

1. sensitivity.
2. specificity.
3. positive predictive value.
4. negative predictive value.

Question 7

proportion of people labelled positive by the test among those with the disease

Answer 7

sensitivity.

Question 8

proportion of people labelled negative by the test among those without the disease

Answer 8

specificity.

Question 9

proportion of people who tested positive who have the disease.

Answer 9

positive predictive value.

Question 10

proportion of people who tested negative among those without the disease.

Answer 10

negative predictive value.