Akindi uses the Kuder-Richardson Formula 20 (KR-20) to provide a measure of reliability for assessments with dichotomous choices (answers options that are either right or wrong). Essentially the KR-20 is assessing how consistent the results from the test are, or how well the test is measuring what you want it to measure.
KR-20 scores range from 0-1 (although it is possible to obtain a negative score); 0 indicates no reliability and 1 represents perfect test reliability. A KR-20 score above 0.70 is generally considered to represent a reasonable level of internal consistency reliability.
By default, Akindi displays a KR-20 score for all assessments, however please note that the result can only be considered reliable if the test has dichotomous choices. Additionally, the number of questions on the test and the number of individuals taking the test can also affect the reliability of the KR-20 score.
The KR-20 score for an Akindi assessment is included in the Question Breakdown CSV.
This can be selected by clicking on the 'Actions' dropdown menu in the Results section and selecting 'Download Question Breakdown CSV' .