Agresti A., Coull B. Approximate is better than ‘exact’ for interval estimation of binomial proportions. The American Statistician. 1998;52:119–126.
Albert, W. (2002). Do Web users actually look at ads? A case study of banner ads and eye-tracking technology. Proceedings of the Usability Professionals Association Conference 2002, Orlando.
Albert, W., & Dixon, E. (2003). Is this what you expected? The use of expectation measures in usability testing. Proceedings of the Usability Professionals Association 2003 Conference, Scottsdale, AZ.
Aldenderfer M., Blashfield R. Cluster analysis (quantitative applications in the social sciences). Beverly Hills, CA: Sage Publications, Inc.; 1984.
American Institutes for Research. Windows XP Home ...