The Cowles data frame has 1421 rows and 4 columns.
These data come from a study of the personality determinants
of volunteering for psychological research.
Usage
Cowles
Format
This data frame contains the following columns:
neuroticism
scale from Eysenck personality inventory.
extraversion
scale from Eysenck personality inventory.
sex
a factor with levels: female; male.
volunteer
volunteeing, a factor with levels: no; yes.
Source
Cowles, M. and C. Davis (1987)
The subject matter of psychology: Volunteers.
British Journal of Social Psychology26, 97–102.