Interlibrary loan came through for me once again.  I was able to check out this master’s thesis from the University of North Dakota for a Gregg Notehand study which was conducted by Sister M. Anthony Naes:

A follow-up of the 1962-65 notehand students of Bishop Dubourg High School, St. Louis, Missouri, to identify the effectiveness and personal uses of notehand 

 

Below is a .jpeg of the questionnaire they gave the Notehand students, for this study.  The results were encouraging.  Notehand teachers may find some of this data useful.