Cowles


The <code>Cowles</code> data frame has 1421 rows and 4 columns.
These data come from a study of the personality determinants
of volunteering for psychological research.


datasets


Functions and Datasets to Accompany J. Fox and S. Weisberg,
An R Companion to Applied Regression, Second Edition, Sage, 2011.

John Fox

Companion to Applied Regression

Cowles function

This data frame contains the following columns:
  <dl>
    <dt>neuroticism</dt><dd>scale from Eysenck personality inventory</dd> <dt>extraversion</dt><dd>scale from Eysenck personality inventory</dd> <dt>sex</dt><dd>a factor with levels: <code>female</code>; <code>male</code></dd> <dt>volunteer</dt><dd>volunteeing, a factor with levels: <code>no</code>; <code>yes</code></dd> </dl> 

Format

Cowles, M. and C. Davis (1987)
 The subject matter of psychology: Volunteers.
 <em>British Journal of Social Psychology</em> <b>26</b>, 97--102.

Cowles: Cowles and Davis's Data on Volunteering

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