Investigating differences between means of more than two groups or experimental conditions is a routine research question addressed in biology. In order to assess differences statistically, multiple comparison procedures are applied. The most prominent procedures of this type, the Dunnett and Tukey-Kramer test, control the probability of reporting at least one false positive result when the dat...

When multidimensional tests are analyzed, the item structures that are obtained by Exploratory Factor Analysis are usually rejected when tested by Confirmatory Factor Analysis. This paper analyzes some of the aspects of the problem by means of simulation studies, and proposes a procedure that may be useful for dealing with the problem. The procedure is illustrated by means of an empirical example.

This paper proposes a new procedure for analyzing means-end chain data in marketing research. Most commonly the collected data is summarized in the Hierarchical Value Map (HVM) illustrating the main attribute-consequence-value linkages. This paper argues that traditionally constructed HVM may give an erroneous impression of the results of a means-end study. To justify the arguments, an alternat...