The Psi Index is a system used by the Terran Confederacy and later the Terran Dominion to measure the psionic ability of terrans,[1] a PA Profile having to be established within nine months of birth for all children born within the territory of the former.[2] Under the Dominion, the same system was also used to measure the psionic ability of gestalts-protoss/terran hybrid soldiers.[3]
People with low levels of psychic power can often detect its use,[1][4] and some can even resist telepathy.[4] A PI rating of 4.5 is too low to reliably project thoughts, and a person with that low a rating is not referred to as a "teep".[5]
The PI score was completely readjusted after Sarah Kerrigan was brought to the new Ghost Program, as she had reached unheard-of levels, forcing this change.[6]
Scale
PI | Description |
---|---|
1-2 | No psychic powers. Most humans. |
2-5 | Limited powers. Wranglers. |
5-8 | Telepathy. "Teeps". Most ghosts fall between 5 and 6. |
8-10 | May have telekinesis. "Teeks". Extremely rare.[1] |
Known Ratings
- Sarco Angelini (10)[7]
- Sarah Kerrigan (pre-infestation) (10)[7]
- Nova Terra (10)[1]
- Jackson Hauler (8.5, prior to spectre enhancement)[8]
- Agent X81505M (8)[1]
- Colin Phash (7.5)[5]
- Gestalt Zero (7+, after protoss gestalt enhancement)[3]
- Kath Toom (6.5 prior to enhancement)[8]
- Delta Emblock (6 or below)[5]
- Aal Cistler (4.5)[5]
- Malcolm Kelerchian (3.5)[1]
Notes
An adjutant rated Infested Kerrigan as a "class 12 psi signature".[9][10] A gameplay trailer for Heart of the Swarm listed her as a "class 11 psionic."[11] After being reborn in primal form, an adjutant rated her power as "the highest psi ever recorded" considering it unclassifiable. [12]
References
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