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Web based system for cleaning and classifying open text fields
An Open Source, web based data cleaning and coding system. queXC takes a data file (such as questionnaire data) and cleans the text input fields by spacing and spell checking them. Operators then code text fields using new/existing coding schemes.
The new site is at http://psychometricon.net/libirt/
The new site is at http://psychometricon.net/libirt/
Library of functions to estimate the items and abilities from the responses of subjects to a questionnaire. The IRT models supported are the logistic model, the multivariate logistic model, the graded model and smoothing by penalization and kernel.
Questionnaire currently is a PHP API for the creation of web based data entry. XML file forms with question and database descriptions are used to generate forms. Answers are stored stored in an Access or MySQL database.
A set of applications that can generate and tabulate paper surveys. Includes simple graphical programs for the common user. Has interchangeable back-end components for the enthusiast.