Study design for qualitative methods

Method comparison study requirements and dataset layout 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).

Subject (optional)	Reference/Comparative method	Test method
1	+	+
2	-	-
3	+	+
4	-	-
5	-	-
6	-	-
7	+	+
8	+	-
9	-	-
10	-	-
…	…	…

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.

Reference / Comparative method	Test method	Count
+	+	32
+	-	1
-	+	3
-	-	38

Available in Analyse-it Editions
Method Validation edition
Ultimate edition