PSPP Authors
* Ben Pfaff wrote most of the program and the manual.
- * John Williams wrote the T-TEST procedure.
+
+ * John Williams originally wrote the T-TEST procedure, which was
+ subsequently re-written by John Darrington
+
* Jim Van Zandt translated the `julcal' date calculation package
into C from code written by Michael Covington, which was based on
formulae by Jean Meeus.
+
+ * John Darrington wrote the T-TEST and ONEWAY procedures, and made
+ numerous revisions to other modules.