Nothing new -- when I took the CPO class for the first time, years ago (1990, I think) I scored a 92 or 94 on the exam. Well, I didn't think I'd missed any, so I looked at the test very carefully.

Lo and behold, I had missed one, but I was right on the other 2 or 3 questions: the key was wrong. The original CPO manual author -- a Dr Van Rossen -- was one of the proctors, so I pointed out the errors to him.

His response? "What difference does it make? You only had to get a 70 to pass?"

Several years later, when I was teaching the CPO class, I carefully went through all 150 or 180 CPO test questions (there were an 'A', 'B', 'C' tests), and found 15+ errors. I still have, somewhere, the letter I sent to the NSPF noting the errors and offering corrections.

Silly me! I thought they'd welcome the corrections. Boy, was I ever wrong!

Ben

PS. I should have caught on, when I discovered that "DOCTOR van Rossen", who went nowhere without his title, was an EdD in physical education, rather than a PhD in a technical field.

PPS. You have to remember that the NSPSI and the NSPF were funded by the chemical companies, and that the $1,000,0000,0000+ per year chem biz would drop below $400,000,000 per year if the methods and facts found here were taught to all dealers and operators. Effective, pertinent, and accurate dealer and commercial operator training would still seriously damage Biolab's bottom line.