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 Dec 2017

crumplab.github.io crumplab.github.io

To demonstrate this problem, he asked participants to rate two numbers on how large they were on a scale of 1to10 where 1 was “very very small” and 10 was “very very large”. One group of participants were asked to rate the number 9 and another group was asked to rate the number 221 (Birnbaum 1999). Participants in this betweensubjects design gave the number 9 a mean rating of 5.13 and the number 221 a mean rating of 3.10. In other words, they rated 9 as larger than 221! According to Birnbaum, this difference is because participants spontaneously compared 9 with other onedigit numbers (in which case it is relatively large) and compared 221 with other threedigit numbers (in which case it is relatively small).
This example to give us an idea of the concept was intriguing and enjoyable to read. It wasn't a boring experiment, and I was actually quite interested while reading it.
