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Statistical Calculator for Hit-Miss Psi Tests

        








Hit-Miss Test

Testing ProcedureEnter Total Trials Statistical Analysis
Open Deck
Closed Deck

MCE* Hits:
Critical ratio (z):
Probability:
Significance Level:
Evidence for Psi-Hitting:
Evidence for Psi-Missing:

Two-tailed One-tailed
*MCE = Mean Chance ExpectationAbout this Calculator
Probability of HitEnter Total Hits
1 in 2
1 in 3
1 in 4
1 in 5
1 in 6
1 in 8
1 in 10
1 in 12








Testing Procedure

The Open Deck procedure is used when all targets are equally likely to occur on EVERY trial. For example, in ESP card-guessing experiments, the cards are shuffled, one is selected for guessing and then this card is returned to the pack before shuffling again and selecting the next card.

The Closed Deck procedure applies when targets are eliminated after each trial. For example, in ESP card-guessing experiments, the cards are shuffled, one is selected for guessing and then put to one side before selecting the next card from the remaining deck (which may or may not be reshuffled at this point).

Probability of Hit

This is determined by the number of different outcomes that are possible. For example, in a standard ESP card-guessing experiment there are 5 different cards, so the probability of a hit is 1 in 5 . In a PK experiment in which people are trying to throw sixes using a die, the probability of a hit is 1 in 6.

Note that this calculator should only be used when the different outcomes are equally likely to occur.

Trials and Hits

Finally, enter the total number of trials (hits and misses combined) and the total number of hits in the appropriate boxes. Then click "Calculate".


More about this calculator

 




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