No specific info about version 2.1. Please visit the main page of Reliability of Difference Scores on Mac Informer.
It gives you the possibility to test your hearing.
Give it two dates and/or times, and it tells you the length of time between them
Color comparison tool that calculates color difference values.
Edit and convert your favorite songs into music scores.
Calculate the Spearman-Brown 'Prophecy' formula on your Mac.
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