Simulated data from a normal distribution added to the Science data set from package "ltm".

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Description

Mixed ordered (Science dataset from package "ltm" coming from the Consumer Protection and Perceptions of Science and Technology section of the 1992 Euro-Barometer Survey) and continuous (simulated from a normal distribution) data.

Usage

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Format

A data frame with 392 observations on the following 12 variables:

Comfort

an ordered factor with levels strongly disagree < disagree < agree < strongly agree

Environment

an ordered factor with levels strongly disagree < disagree < agree < strongly agree

Work

an ordered factor with levels strongly disagree < disagree < agree < strongly agree

Future

an ordered factor with levels strongly disagree < disagree < agree < strongly agree

Technology

an ordered factor with levels strongly disagree < disagree < agree < strongly agree

Industry

an ordered factor with levels strongly disagree < disagree < agree < strongly agree

Benefit

an ordered factor with levels strongly disagree < disagree < agree < strongly agree

X1

a numeric vector

X2

a numeric vector

X3

a numeric vector

X4

a numeric vector

X5

a numeric vector

References

Karlheinz, R. and Melich, A. (1992). Euro-Barometer 38.1: Consumer Protection and Perceptions of Science and Technology. INRA (Europe), Brussels. [computer file]

Rizopoulos, D. (2006). ltm: An R package for Latent Variable Modelling and Item Response Theory Analyses. Journal of Statistical Software, 17(5), 1–25.

Examples

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# # NOT RUN
# data(mixedScience)
# mixedPA <- PA(mixedScience, percentiles = c(0.90, 0.99), nReplicates = 200,
#               type = "mixed")
# print(mixedPA)