Computes the part-whole correlation (correlation of an item
with the whole scale except for this item)

Miscellaneous functions for data cleaning and data analysis of educational assessments. Includes functions for descriptive
analyses, character vector manipulations and weighted statistics. Mainly a lightweight dependency for the packages 'eatRep',
'eatGADS', 'eatPrep' and 'eatModel' (which will be subsequently submitted to 'CRAN').
The function for defining (weighted) contrasts in weighted effect coding refers to
te Grotenhuis et al. (2017) <doi:10.1007/s00038-016-0901-1>.
Functions for weighted statistics refer to
Wolter (2007) <doi:10.1007/978-0-387-35099-8>.

Sebastian Weirich

eatTools

Miscellaneous Functions for the Analysis of Educational
Assessments

Martin Hecht

Karoline Sachse

Benjamin Becker

Nicole Mahler

Edna Grewers

pwc function

<dl> <dt>dat</dt>
<dd>
a data.frame with numeric columns (items)</dd></dl>

Arguments

Part-whole correlation for numeric data frames — pwc

<dl>

 <dt>dat</dt>
<dd>
a data.frame with numeric columns (items)</dd>

</dl>

pwc: Part-whole correlation for numeric data frames

Description

Usage

Value

Arguments

Examples