Rank Grid questions are used when you want respondents to rank a list of answers to understand perceptions of each in relation to the other.
The answer choices could be anywhere from a list of different flavor possibilities to name ideas for a product. There are various ways in which you can have respondents rank such as: most to least favorite and most to least likely to purchase.
Let's look at an example:
Please rank the following colors from most to least favorite?
With the following as the answer choices (rows): red, blue, orange, green, yellow, purple.
Please note: rank questions can contain up to 10 rows/items.