The characteristic of good test data is following except :-
The characteristic of good test data is following except Should be comprehensive
Objectivity is an important characteristic of a good test. It affects both validity and reliability of test scores. Objectivity of a measuring instrument moans the degree to which different persons scoring the answer receipt arrives of at the same result.
The test should be free from subjective—judgement regarding the ability, skill, knowledge, trait or potentiality to be measured and evaluated. 2. Reliability: This refers to the extent to which they obtained results are consistent or reliable.
Reliability and validity are two concepts that are important for defining and measuring bias and distortion. Reliability refers to the extent to which assessments are consistent. ... Another measure of reliability is the internal consistency of the items.
Data accuracy is one of the components of data quality. It refers to whether the data values stored for an object are the correct values. To be correct, a data values must be the right value and must be represented in a consistent and unambiguous form. For example, my birth date is December 13, 1941.