Hello everybody.
Today I want to drop a short summary of different levels of measurrements in statistics.
It's represented in following table:
|
|
Difference
|
Order
|
Similar intervals
|
Meaningful zero point
|
Categorical
|
Nominal
|
+
|
-
|
-
|
-
|
Ordinal
|
+
|
+
|
-
|
-
|
Quantitative
|
Interval
|
+
|
+
|
+
|
-
|
Ratio
|
+
|
+
|
+
|
+
|