Study design for qualitative methods

Requirements

• 2 qualitative (binary / semi-quantitative) variables.

Dataset layout for a two qualitative tests

Use a column for the reference/comparative method, and a column for the test method; each row has the values of the variables for a case (Subject).

Frequency form dataset layout for two qualitative tests

Use a column for the reference/comparative method, and a column for the test method and a column for the number of cases (Frequency); each row has the values of the variables and the frequency count.