Ideal is typical
Canadian Journal of Experimental Psychology/Revue canadienne de psychologie expérimentale (2005) - Comment
doi: 10.1037/h0087453  issn: 1878-7290  issn: 1196-1961  pubmed: 15832626 

Russell C. Burnett, Douglas L. Medin, Norbert O. Ross, Sergey V. Blok