There's a genuinely interesting idea at the back of this, but one that they seem to have missed.
I suggest that there are
approximately 5 very roughly defined categories of factors that are conventionally or traditionally associated with hauntings.
- Tragic or gruesome death, often but not always associated with some form of unfinished business or unfulfilled desire on the part of the deceased.
- Location, whether you think in terms of ley lines, or some other unproven "Earth energy" or "portal" etc. (I would probably put burial grounds, Indian or otherwise, in category 1, rather than 2.)
- Reproducible physical characteristics which might include such things as being built of stone, built on granite, built near to running water, having mullioned windows, dark stairwells, oak beams, etc.
- Times of the year, dates, not associated with some specific event at that location. (e.g. Hallowe'en/Beltane/Samhain, etc.)
- The phases of the moon.
Joking apart, we cannot create category 1 purely for the purposes of research. I suppose in theory we could build a house on the location of a murder that had already happened, or next to a plague pit. However, there would be many objections to this, not least that it would be in bad taste, and the risk that the experimental subjects would be aware of the association and may be subject to "suggestion".
Until we have some sort of established scientific understanding of what is or is not happening with ley lines, Earth energies, and portals to the other side, some testable hypotheses and some verifiable data,
I would put 2 on the back burner.
That leaves 3, where some controlled experiments could be done.
(
Factors 4 and 5 could of course be incorporated in the analysis of any observational data.)
I can imagine that an honest and thorough study of reported hauntings would produce some common factors relating to the physical characteristics of the building.
It might then be possible to construct a series of buildings incorporating these features, then rent them out to the public and see whether there are any reported hauntings. If there were reports, then that might suggest one of two hypotheses:
- That hauntings are a socially constructed psychological phenomenon, and that people in a location that has features traditionally associated with haunting are likely to have a psychological experience that they interpret as a haunting. (If you stay in a dark Gothic building, you might expect to see a ghost.) Or...
- That there is something about the construction (damp granite, certain combinations or shapes of stones, temperature...) that creates a genuine physical or physiological effect that the subject interprets as a haunting.
Personally, I cannot see anyone getting the funding for this, and certainly not the funding to do it on a substantial scale.
My own view is that hauntings are likely to be a socially constructed psychological phenomenon, a form of suggestion, reinforced by the effects of confirmation bias. However, that does not mean I would not be fascinated to read of any proper controlled experiments of the kind described.