As is stated in the Individual Test Performance Report that is included with the results letter, the number of questions from each rubric is not equal. Therefore, the numerical average of the rubric scores, which are percentage scores, does not equal the overall score. Each question is worth the same value, no matter what rubric it belongs to or how many questions there are from that rubric on the exam. It is the intent of the Board that the exams be fair, reasonable, and current, and also representative of a broad range of industrial hygiene topics, since it is a certification in Comprehensive Practice. This is not a simple task.
Some people complain that there is too much Toxicology on the exams.
Others complain that there isn't enough Toxicology on the exams. Others complain that there isn't enough. The results of these periodic surveys and related efforts are then used to update the exam. For example, a few years ago, when asbestos work was such a large percentage of what many consultants were doing, many examinees would have liked to have seen the exam become an asbestos exam. Now, some would like to see it become a lead-abatement examination.