pisaitems

North American (i.e. Canada, Mexico, and United States) results from the 2009
Programme of International Student Assessment (PISA)
as provided by the Organization for Economic Co-operation and Development (OECD).
See <a href="http://www.pisa.oecd.org/">http://www.pisa.oecd.org/</a> for more information including the code book.

datasets

An approach to analyzing Likert response items, with an emphasis on visualizations.
The stacked bar plot is the preferred method for presenting Likert results. Tabular results
are also implemented along with density plots to assist researchers in determining whether
Likert responses can be used quantitatively instead of qualitatively. See the likert(),
summary.likert(), and plot.likert() functions to get started.

Jason Bryer

likert

Analysis and Visualization Likert Items

Kimberly Speerschneider

pisaitems function

a data frame 66,690 ovservations of 81 variables from North America.

Format

North American (i.e. Canada, Mexico, and United States) results from the 2009
Programme of International Student Assessment (PISA)
as provided by the Organization for Economic Co-operation and Development (OECD).
See <a href='http://www.pisa.oecd.org/'>http://www.pisa.oecd.org/</a> for more information including the code book.

pisaitems: Programme of International Student Assessment

Description

Arguments

Format