singlechoice {EloChoice}

update stimulus ratings after one rating event

Description

update stimulus ratings after one rating event

Usage

singlechoice(val1, val2, k)

Arguments

val1

rating of the preferred stimulus before the rating event

val2

rating of the unpreferred stimulus before the rating event

k

value of k-constant, which determines the maximum change of ratings after a single rating event

Value

vector with two values: updated ratings after the rating event for preferred and unpreferred stimulus

Author(s)

Christof Neumann

References

Elo AE (1978). The rating of chess players, past and present. Arco, New York.

See Also

EloRating

Examples

# little change because rating difference is large (positive), i.e. expectation is clear
singlechoice(1200, 500, 100)
# no change because rating difference is very large (positive), i.e. expectation is clear
singlechoice(1500, 500, 100)
# large change because rating difference is small (negative), i.e. expectation is clearly violated
singlechoice(500, 1500, 100)