Documentation of Author Roles

Author	Research Project			Statistical Analysis			Manuscript Preparation
Author	Conception	Organization	Execution	Design	Execution	Review and Critique	Writing of First Draft	Review and Critique
Neilson	X	X	X	X	X	X	X	X
Zech	X	X	X					X
Hufnagel		X	X	X	X	X		X
Slone		X	X					X
Wang		X	X					X
Homan		X	X					X
Gutzwiller		X	X					X
Leslie, E.		X	X		X	X		X
Leslie, N.	X		X					X
Xiao, J.		X	X	X	X	X		X
Hedera		X	X	X	X	X		X
LeDoux		X	X	X	X	X		X
Gebelein		X	X					X
Wilbert		X	X					X
Eckenweiler		X	X					X
Winkelmann		X	X					X
Gilbert	X	X	X	X	X	X	X	X
Huang		X	X	X		X		X