ex1319

A 1989 study investigated the effect of heredity and environment on
 intelligence. Data are the IQ scores for adopted children whose
 biological and adoptive parents were categorized either in the highest
 or the lowest socioeconomic status category.

datasets

Data sets from Ramsey, F.L. and Schafer, D.W. (2002), "The
Statistical Sleuth: A Course in Methods of Data Analysis (2nd
ed)", Duxbury.

Berwin Turlach

Sleuth2

Data Sets from Ramsey and Schafer's "Statistical Sleuth (2nd
Ed)"

ex1319 function

A data frame with 38 observations on the following 3 variables.<dl>
 <dt><code>IQ</code></dt>
<dd>IQ scores of adopted children</dd> <dt><code>Adoptive</code></dt>
<dd>a factor with levels <code>"High"</code> and
 <code>"Low"</code>; the socioeconomic status of the adoptive parents</dd>
 
 <dt><code>Biologic</code></dt>
<dd>a factor with levels <code>"High"</code> and
 <code>"Low"</code>; the socioeconomic status of the biological parents</dd>
 
 
</dl>

Format

Nature---Nurture — ex1319

A data frame with 38 observations on the following 3 variables.<dl>
 <dt><code>IQ</code></dt>
<dd>IQ scores of adopted children</dd>

 <dt><code>Adoptive</code></dt>
<dd>a factor with levels <code>"High"</code> and
 <code>"Low"</code>; the socioeconomic status of the adoptive parents</dd>
 
 <dt><code>Biologic</code></dt>
<dd>a factor with levels <code>"High"</code> and
 <code>"Low"</code>; the socioeconomic status of the biological parents</dd>
 
 
</dl>

ex1319: Nature---Nurture

Description

Usage

Arguments

Format

References

See Also

Examples