Only shamans, priests, ritualists, and the like receive power
Shaman possess greater general power than laymen, usually because he acquires a greater number of spirits, but not because the spirits have specific functions
Shamans possess different powers than laymen, but not necessarily greater power in anything but their specialties. Shamans, for instance, cure the sick, but do not have the supernatural powers of some ritualists over other functions
Shamans possess greater power as well as more specific spirits than laymen over specific functions, such as spirits to cure specific maladies
Shamans possess greater power than laymen, but not a greater number of different kinds of spirits than laymen

Medicine societies reported to have greater power in concert than any particular shaman (Whole medicine society called upon to work for cure if shaman fails)
No differences among shamans
Some shamans reported to have greater power than others

Shamans' services (or some shamans' services) requested in communities other than their home communities, but within their own dialect or language group
Shamans' services (or some shamans' services) requested in home community, in other communities within same language, and other language-speaking communities on occasion

Caused by neither foreign object nor foreign spirit

Both soul loss and loss of spirit helper

Loss by theft, usually by a ghost or some other supernatural agent (not a sorcerer, or witch, or bad medicine man)
Loss by wandering of soul, usually on own volition

Intrusions caused both by supernatural agents and sorcerers, etc.
Intrusions caused by bad shamans, sorcerers, etc.
Intrusions caused by supernatural sources only, no human agents involved
No foreign intrusions

Souls stolen by shamans, or sorcerers, or witches

No white imitative magic
White imitative magic, such as shooting with arrows or poison darts. wooing through entreating, coaxing, or gesturing, or stabbing an animal effigy, or simulating crop growth, and so forth, is practiced

Black imitative magic used to harm humans