KNIME Statistic Nodes version 4.2.1.v202008251159 by KNIME AG, Zurich, Switzerland
Computes the Cronbach Alpha for all numerical columns based on their variance. Cronbach's Alpha compares the variance of the individual columns with the variance of the sum of all columns. It typically serves as an estimate of the reliability of a psychometric test. Cronbach Alpha is known as an internal consistency estimate of reliability of test scores since it will generally increase as the intercorrelations among test items increase. The theoretical value of alpha varies from zero to 1. However, depending on the estimation procedure used, estimates of alpha can take on any value less than or equal to 1. If Missing Values are encountered the node will fail.
To use this node in KNIME, install KNIME Statistics Nodes from the following update site:
You want to see the source code for this node? Click the following button and we’ll use our super-powers to find it for you.
Do you have feedback, questions, comments about NodePit, want to support this platform, or want your own nodes or workflows listed here as well? Do you think, the search results could be improved or something is missing? Then please get in touch! Alternatively, you can send us an email to email@example.com, follow @NodePit on Twitter, or chat on Gitter!
Please note that this is only about NodePit. We do not provide general support for KNIME — please use the KNIME forums instead.