tag:blogger.com,1999:blog-7022155324729704001.post1754544982070451142..comments2011-09-16T22:59:40.645-05:00John M. P. Knoxhttp://www.blogger.com/profile/09842543518651197297noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7022155324729704001.post-7045439137177525652011-09-16T22:59:40.645-05:002011-09-16T22:59:40.645-05:00Hi Akij,<br /><br />It has been a while, but I think I just asked them if they were an engineer. If they answered yes, they were allowed to move on. It was very simple.John M. P. Knoxhttp://www.blogger.com/profile/09842543518651197297noreply@blogger.comtag:blogger.com,1999:blog-7022155324729704001.post-24606094216090336702011-09-16T21:37:27.608-05:002011-09-16T21:37:27.608-05:00Quick question - how did you ensure/qualify that the respondents were engineers?eAkijhttp://www.blogger.com/profile/13291667674004525440noreply@blogger.com