SkiExperts {PairedData}

Actual and imaginary performances in ski

Description

This dataset gives the actual and motor imaginary performances (time) in ski for 12 experts.

Usage

data(SkiExperts)

Format

A dataframe with 12 rows and 3 columns.

[,1]	Subject	factor	anonymous subjects
[,2]	Actual	numeric	actual performance (sec.)
[,3]	Imaginary	numeric	imaginary performance (sec.)

Source

Private communication. Aymeric Guillot, CRIS, Lyon 1 University, FRANCE.

References

Louis, M., Collet, C., Champely, S. and Guillot, A. (2012) Differences in motor imagery time when predicting task duration in Alpine skiers and equestrian riders. Research Quarterly for Exercise and Sport, 83(1), 86-93.

Examples

data(SkiExperts)

# Visualising
with(SkiExperts,plot(paired(Actual,Imaginary),type="profile"))

# No underestimation of imaginary time for experts
with(SkiExperts,t.test(paired(Actual,Imaginary)))

# But a very interesting increase in dispersion in their
# predicted times
with(SkiExperts,Var.test(paired(Actual,Imaginary)))