Problem solving truth #23: Incorrect datas are actually more dangerous than no data because they lead you down the wrong path. (Bob Sproull)

Problem solving truth #22: Problem-solving traps create detours for problem solvers. (Bob Sproull)

Problem solving truth #21: Find defect-free configurstions and then compare them to find differences and distinctions (Bob Sproull)

Problem solving Truth #20: Independent causes do not or may not occur simultaneously(Bob Sproull)

Problem Solving truth #19: Simultaneous symptoms usually have a common cause. (Bob Sproull)