A way to check the ∗internal consistency (or ∗reliability) of an ∗index by seeing how well the scores on one half of the items ∗correlate with those on the other half. One advantage of irr is that it allows researchers to assess the reliability of ratings or judgments made by multiple raters, which can help reduce bias and increase the validity of the results. Split half reliability is very much similar to parallel form reliability in which items are divided into two sets and then administered to individuals.
PPT Chapter 4 Reliability PowerPoint Presentation, free download
To increase the robustness of these estimates, the package implements a permutation approach that takes a large.
Given the importance of measurement, researchers and practitioners must evaluate the quality of the measurement tools that they use.
We review four methods that differ in how the trials are split into parts: The methods in splithalf are built around split half reliability estimation.
