Our software library provides a free download of rProphecy 2.0.2 for Mac. This Mac download was checked by our antivirus and was rated as malware free. The size of the latest installer available is 13.5 MB. RProphecy for Mac lies within Education Tools, more precisely Teaching Tools. The actual developer of this free software for Mac is Marley Watkins.
From the developer:
rProphecy is a standalone Mac program that calculates the Spearman-Brown 'Prophecy' formula that estimates the reliability of a test if its number of items is altered. You can calculate the modified test reliability by entering the current test reliability and the proportion of change. Alternatively, you can calculate the proportion of change needed by entering the current and modified test reliability.
You may want to check out more Mac applications, such as eduMap, FRS Clocks and Time or Jers Flash Card Viewer, which might be related to rProphecy.