Baumann {car} | R Documentation

## Methods of Teaching Reading Comprehension

### Description

The `Baumann` data frame has 66 rows and 6 columns. The data are from an experimental study conducted by Baumann and Jones, as reported by Moore and McCabe (1993) Students were randomly assigned to one of three experimental groups.

### Usage

    Baumann

### Format

This data frame contains the following columns:

group

  Experimental group; a factor with levels: `Basal`, traditional method of teaching; `DRTA`, an innovative method; `Strat`, another innovative method.

pretest.1

  First pretest.

pretest.2

  Second pretest.

post.test.1

  First post-test.

post.test.2

  Second post-test.

post.test.3

  Third post-test.

### Source

Moore, D. S. and McCabe, G. P. (1993) Introduction to the Practice of Statistics, Second Edition. Freeman, p. 794–795.

### 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.

[Package car version 2.1-2 Index]