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Cronbach Alpha: Calculate the Cronbach Alpha internal consistency

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Name: Roman <contact>
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This class can calculate the Cronbach Alpha internal consistency (reliability) measure.

It takes as parameter an array with sets of values that usually represent the answers given by respondents of a survey in the form of a scale.

This class processes the sets of values and computes the internal consistency using the Cronbach Alpha measure.

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Name: Cronbach Alpha
Base name: cronbach-alpha
Description: Calculate the Cronbach Alpha internal consistency
Version: -
PHP version: 5.0
License: GNU General Public License (GPL)
All time users: 193 users
All time rank: 7203
Week users: 0 users
Week rank: 1347 Equal
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  Innovation Award  
PHP Programming Innovation award nominee
September 2011
Number 9
Cronback Alpha is a measure that can be used to determine the level of consistency of sets of values, like for instance the responses that a group of users give to a survey.

This class provides a PHP implementation of the calculations necessary to compute the Cronbach Alpha factor.

Manuel Lemos

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