Question

You are surveying students to find out if they prefer anchovies or vegetables on pizza. Is the following question biased or unbiased?

Do you prefer slimy anchovies or fresh vegetables on your pizza?

biased
unbiased

Answer 1

unbiased
It's a preference to have one or the other.

Answer 2

Biased as when using descriptive words like slimy and fresh an image is generated in the subjects mind purposefully. To be unbiased the question should be do you prefer anchovies or vegetables on your pizza?

Answer 3

If you have trouble with these try saying the original question aloud to yourself and then removing all the adjectives and see if you feel differently about the options then.