(2018-12-28, 05:42 PM)Max_B Wrote: Another good example of the limitation's of the Greyson scale perhaps...?
Self-score 16 questions... get a total score of 7 or more and you had an NDE, get a total score below 7 and you didn't have an NDE. A researcher gets to compare pears with pears (mediators), on the basis of 16 questions, but then suggests similarity between pears (meditators) with apples (everybody else with a score over 6).
Possibly more meaningful, as you say, to compare a known physiological state (i.e. cardiac arrest) - so one can compare apples with apples, and ensure *all* experiences recalled following cardiac arrest are relevant, even if they would have scored less than 7.
The Greyson Scale may have it's uses, when used appropriately to select a sub-group of experients to compare, for example Pim van Lommel 2001, it may for instance, show some correlation with the severity of cardiac arrest. But honestly, it doesn't say whether one had an NDE or not (doesn't even count distressing experiences)... and is often used inappropriately by researchers.
Maybe Max but it doesn't really matter (does it?) if the scale is not quite perfect. People know when they've had one.