It is difficult to test scientifically, since archaeological sites are relatively abundant, and all of its verified predictions could have been made via educated guesses.
One of the better publicized methods and the subject of psychic archaeologist Karen Hunt's 1981 masters thesis at Indiana University involves dowsing for Electromagnetic Photo-Fields (EMPF) using two L-shaped [Ferrous] coat hangers bent about 17.8 cm from the end as electromagnetic photo sensors.
After holding the artifact Ossowiecki stated that it was a spear point from France or Belgium, belonging to round house dwelling people with brownish skin, black hair, short stature, large hands, feet and hips wearing skins.
In 1877, Juan Péon Contreras, director of the Museo Yucateco in Mérida, noted that Le Plongeon's discoveries of sculpture at Chichén Itzá resulted from the application of "abstruse archaeological reasoning and...
[8] Helena Blavatsky, a co-founder of the Theosophical Society, regarded the work of the Le Plongeons as proving the validity of "metaphysical archaeology.".
Captain Bartlett's communication with spirits produced two sketches of the abbey's layout signed by "Gulielmus Monachus."
The layouts showed a chapel to the east of the abbey that was unknown to F. Bligh Bond, he asked that Captain Bartlett's source provide more information about this building.
[12] Mainstream archeologists are far from nonplussed about the discovery, reminding people that F. Bligh Bond was an expert in medieval church architecture, that most of the site had already been dug out, and that the location of the chapel could be easily guessed from the existing data.
[4][12] Archaeologist Stephen Williams said that "Culture is a patterned behavior, and medieval cathedrals are some of the most patterned pieces of construction in our culture... All he had to do was turn to almost any nearby structure, such as Salisbury Cathedral, less than fifty miles to the east, and see its Trinity Chapel behind the main altar and guess that Glastonbury would have one too.
Hunt mapped the locations of 129 buildings or cultural points including the house, outbuildings, a windmill, a tank stand, the fences and gates of the homestead.
[1] Predictions about the lifestyle of ancient civilizations can't be verified due to the lack of written records.