Categorization and Sorting : DRUGS. A Study of folk-categorization of recreational drugs Initiated as Class Exercise in Graduate course of Methods of Systematic Data Collection University of Essex, 2001 … with subsequent replications. Stage 1: Definition & Elicitation.
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8 Poppers (Nitrites)
5 Cough mixture (inc expectorant and dry)
Only 1 Mention
*Kaolin and Morphine
*Milk of magnesia
poppy seed tea
Method: Free-sorting*Coxon, A.P.M. (1999) Sorting Data: Collection and Analysis, Newbury Pk, Ca: Sage Publications (Quantitative Applications in the Social Sciences, 07-127)
SO: Fred’s Groups/piles are:
Aggregation (sum) of 68 Subjects’ (0,1) data (VIA SORTPAC)matrices ->M1: x(j,k) = no of Ss who put objects j & k in same group.Hence Similarity measure
Let’s use interactive MDS (PERMAP) …
to strip down & INTERPRET the 2D solution