2. Nominal scales of measurement
At the nominal level the numbers assigned to an attribute are simply representations so they can’t be added or subtracted or subjected to any arithmetic process. But the numbers in each category can be counted.
In the spreadsheet shown, a team of footballers was asked whether they were left or right footed. Left footed players are entered onto the spreadsheet as 1 and right footed players as 2. How many left footed and right footed players are there in this team?
Similarly adding up all the numbers on footballers shirts is possible - it comes to 66 - but this figure doesn't mean anything!