I conducted an experiment where I had 20 people complete 100 sentences with only one word. They had to come up with their completion independently of others and could give any answer they thought was suitable.

Here's a sample question with responses from 20 people:

Yesterday I bought a:

  1. House
  2. (No answer)
  3. Sandwich
  4. Car
  5. Ticket
  6. Sandwich


  1. Car
  2. Sandwich

I now need to measure, how creative every participant was, meaning I want to rate each participant on a certain scale from completely uncreative to absolutely creative (let's say 0 is uncreative, sticks to popular answers and 100 is highly creative with unique answers to every question).

Please help me find suitable formula for rating each participant's originality of responses.

Crucially important: some sentences were left unanswered by some people, meaning total number of answers for a question was smaller.

Thank you.

  • $\begingroup$ A bit odd, non-scientific, you ask this now, and not before you ran the experiment... Asking for existing methods in creativity research is relevant though. I hope for you they can be applied..🙂 $\endgroup$ – Steven Jeuris Jun 4 '19 at 18:17

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