cemspc {prefmod}

Data (paired comparisons with undecided): CEMS (Community of European management schools)

Description

A survey of 303 students was carried out to examine the students' preferences of 6 universities (London, Paris, Milano, St. Gallen, Barcelona and Stockholm) with a 17 items questionnaire. The first 15 variables indicate the subjects' preferences. For a given comparison the responses are coded as 0 if the first university was preferred, 2 if the second university was preferred and 1 if no decision was made. The variable ENG contains the knowledge of English and the variable SEX contains the gender.

Usage

cemspc

Format

A data frame with 303 rows for the subjects containing the outcome of the 15 comparisons and the two covariates

V1

London vs. Paris

V2

London vs. Milano

V3

Paris vs. Milano

V4

London vs. St. Gallen

V5

Paris vs. St. Gallen

V6

Milano vs. St. Gallen

V7

London vs. Barcelona

V8

Paris vs. Barcelona

V9

Milano vs. Barcelona

V10

St. Gallen vs. Barcelona

V11

London vs. Stockholm

V12

Paris vs. Stockholm

V13

Milano vs. Stockholm

V14

St. Gallen vs. Stockholm

V15

Barcelona vs. Stockholm

ENG

Knowledge of English: (1) good, (2) poor

SEX

Gender: (1) female, (2) male

References

Dittrich, R., Hatzinger, R., & Katzenbeisser, W. (1998). Modelling the effect of subject-specific covariates in paired comparison studies with an application to university rankings. Applied Statistics, 47(4), 511–525.

Examples

old_par <- par(mfrow = c(4, 4))
for(i in 1:15){ barplot(table(cemspc[, i])) }
par(old_par)