Convert p values to approximate (pseudo) Bayes Factors (PseudoBF10).

Convert p values to approximate (pseudo) Bayes Factors (PseudoBF10). This transformation has been suggested by Wagenmakers (2022).

Usage

p_to_bf(p, n, log = FALSE, label = FALSE)

Arguments

p

p value(s).

n

Number of observations.

log

Return log(BF10) or raw BF10. Defaults to FALSE.

label

Add labels (i.e., names) to returned values. Defaults to FALSE.

Value

A (named) numeric vector of pseudo Bayes Factors (\(\text{PseudoBF}_{10}\)).

References

Wagenmakers, E.-J. (2022). Approximate objective Bayes factors from p-values and sample size: The \(3p\sqrt{n}\) rule. PsyArXiv. doi:10.31234/osf.io/egydq

See also

bayestestR::p_to_bf()

Examples

p_to_bf(0.05, 100)
#> [1] 0.6666667
p_to_bf(c(0.01, 0.05), 100)
#> [1] 3.3333333 0.6666667
p_to_bf(c(0.001, 0.01, 0.05, 0.1), 100, label=TRUE)
#> (p = 0.001, n = 100)  (p = 0.01, n = 100)  (p = 0.05, n = 100) 
#>           33.3333333            3.3333333            0.6666667 
#>   (p = 0.1, n = 100) 
#>            0.3333333 
p_to_bf(c(0.001, 0.01, 0.05, 0.1), 1000, label=TRUE)
#> (p = 0.001, n = 1000)  (p = 0.01, n = 1000)  (p = 0.05, n = 1000) 
#>            10.5409255             1.0540926             0.2108185 
#>   (p = 0.1, n = 1000) 
#>             0.1054093