data qualities definitions

Question 1

Accuracy

Answer 1

How close a measurement is to the true value of the quantity being measured.

Question 2

External validity

Answer 2

Whether the results of the research can be applied to similar individuals in a different setting.

Question 3

Internal validity

Answer 3

Whether a study investigates what it sets out or claims to investigate

Question 4

Precision

Answer 4

How closely a set of measurement values agree with each other.

Question 5

Repeatability

Answer 5

How close successive measurements are when they are carried out under the same conditions.

Question 6

Reproducibility

Answer 6

How close measurements of the same quantity are when carried out under changed conditions.

Question 7

Errors

Answer 7

Systematic errors affect the accuracy of a measurement, by causing readings to differ from the true value by a consistent amount or by the same proportion each time a measurement is made.

Question 8

Outliers and contradictory or incomplete data

Answer 8

Outliers are values that lie a long way from other results