Techniques for secondary analysis: Unfolding analysis of "PICK K/N" and "PICK ANY/N" data

'Paper prepared for presentation at the IFDO/IASSIST Conference, Workshop on Techniques for Secondary Analysis, Amsterdam, May 20 23, 1985. Comments are welcomed by the author. Sometimes the question asked is only: "which k of these n stimuli do you prefer most?" or, even more generally, "which of these n stimuli do you prefer?" Such questions can be referred to as 'ramk n/n', 'rank k/n', 'pick k/n' and 'pick any/n' data, respectively. Stimuli may be political parties, candidates, career possibilities, or brand names of some consumer good. Rather than asking about 'preference', the questions may also be phrased in terms of other evaluative concepts, such as 'sympathy' or 'importance'. In this paper I will be concerned with analyzing data of the form 'pick k/n' or