Classify change scores against the minimal detectable change (MDC)

A first responder-analysis primitive: a change is a real improvement/decline only if it exceeds the MDC (measurement noise). Uses PhysioCore::mdc.

Usage

mdcResponder(change, sem_value, confidence = 0.95)

Arguments

change

Numeric change score(s) (follow-up minus baseline).

sem_value

The standard error of measurement (see PhysioCore::sem).

confidence

Confidence level for the MDC (default 0.95).

Value

Character vector: "improved", "stable", or "declined".

Examples

mdcResponder(c(5, 0.5, -6), sem_value = 1.5)
#> [1] "improved" "stable"   "declined"