mu_plot

The expected score <code>mu(index)</code> is a function of the score index index. A diagonal
 dashed line is displayed to show the linear relationship to the score range interval.

Develop, evaluate, and score multiple choice examinations,
psychological scales, questionnaires, and similar types of data involving
sequences of choices among one or more sets of answers.
This version of the package should be considered as brand new.  Almost all
of the functions have been changed, including their argument list.
See the file NEWS.Rd in the Inst folder for more information.
Using the package does not require any formal statistical knowledge
beyond what would be provided by a first course in statistics in a
social science department.  There the user would encounter the concept
of probability and how it is used to model data and make decisions,
and would become familiar with basic mathematical and statistical notation.
Most of the output is in graphical form.

James Ramsay

TestGardener

Information Analysis for Test and Rating Scale Data

Juan Li

Marie Wiberg

Joakim Wallmark

Spencer Graves

mu_plot function

<dl> <dt>mufine</dt>
<dd>A mesh of 101 equally spaced values of mu as a function of index.</dd> <dt>scrrng</dt>
<dd>A vector of length 2 containing the score range.</dd> <dt>titlestr</dt>
<dd>A string containing the title of the data.</dd></dl>

Arguments

Author

Plot expected test score as a function of score index — mu_plot

<dl>

 <dt>mufine</dt>
<dd>A mesh of 101 equally spaced values of mu as a function of index.</dd>

 <dt>scrrng</dt>
<dd>A vector of length 2 containing the score range.</dd>

 <dt>titlestr</dt>
<dd>A string containing the title of the data.</dd>

</dl>

mu_plot: Plot expected test score as a function of score index

Description

Usage

Value

Arguments

Author

References

See Also