The Friendly data frame has 30 rows and 2 columns.
The data are from an experiment on subjects' ability to remember words
based on the presentation format.
Usage
Friendly
Arguments
source
Friendly, M. and Franklin, P. (1980)
Interactive presentation in multitrial free recall.
Memory and Cognition8 265--270 [Personal communication from M. Friendly].
References
Fox, J. (2008)
Applied Regression Analysis and Generalized Linear Models,
Second Edition. Sage.
Fox, J. and Weisberg, S. (2011)
An R Companion to Applied Regression, Second Edition, Sage.