Creates a prior distribution for a p-hacking selection kernel

prior_phacking() creates a prior distribution for a mass-preserving p-hacking redistribution kernel. The initial backend supports linear and quadratic power depletion between source and target, with depleted probability mass redistributed between target and destination.

This path is experimental and is not used by a released consumer yet. Mixed source/destination cuts across branches cannot be expressed; segments does not supply that geometry. Mixed or missing q currently falls back to a static linear bin rather than encoding mixed forms.

prior_phacking(
  side = "one-sided",
  target = 0.025,
  source = 0.25,
  destination = 0.005,
  form = c("linear", "quadratic"),
  alpha = prior("beta", list(1, 1)),
  report_scale = "pi_null",
  prior_weights = 1
)

Arguments

side: side geometry. Currently only "one-sided" is supported.
target: target p-value cut point.
source: source p-value cut point. Must be larger than target.
destination: destination p-value cut point. Must be smaller than target.
form: power depletion form, either "linear" or "quadratic".
alpha: prior distribution for the p-hacking severity parameter.
report_scale: reporting scale for deterministic summaries.
prior_weights: prior odds associated with a given distribution.

Value

prior_phacking() returns an object of class "prior".