human {hassediagrams} | R Documentation |
A block design for an experiment in human-computer interaction
Description
This is a block design to compare two methods (mouse and stylus) of drawing a map in a computer file. The design involved 12 subjects randomised in 6 days and 2 tests (morning/afternoon) within each day, across 2 rooms. The design is based on 2x2 Latin squares; see Example 7 Brien and Bailey (2006) for more details.
Usage
data(human)
Format
A data frame of 24 observations on 7 variables. The 7 variables/factors included in the design are:
- Subject
Categoric factor with levels 1-12.
- Day
Categoric factor with levels 1-6.
- Room
Categoric factor with levels A and B.
- Period
Categoric factor with levels Morning and Afternoon.
- Method
Categoric factor with levels Mouse and Stylus.
- Sequence
Categoric factor with levels 1 and 2.
- Test
Categoric factor with levels 1-24.
Source
Brien, C.J. and Bailey, R.A. (2006). "Multiple randomizations (with discussion)". *Journal of the Royal Statistical Society B*, 68, pp. 571-609.
Examples
data("human")
human