Originally Posted by MinnMan

Sorry Seattle Forrest , this is not a word game. Accuracy and precision have distinct meanings in metrology that are not open for debate. You can stay focused on accuracy if you like, but that does not address precision, which is a valid concept regardless of your opinion.

If you could show that the disheveled hair index gave the same numerical answer through repeated measurements under the same measurement protocols, then it would be potentially precise, without any constraints on whether it is accurate. You are implying that the disheveled hair index is both inaccurate and imprecise, and therefore this is. not a reasonable comparison to the time series data that terrymorse showed.