rci: Function for the reliable change index

Description Usage Arguments Value Examples

Description

Function for the reliable change index

Usage

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rci(pre, post, data, rtt, sdNorm)

Arguments

pre

The variable containing the values from before the intervention

post

The variable containing the values from after the intervention

data

Data set containing the variables

rtt

Test-retest correlation for the used measure. Should be from the relevant population and with no intervention in between

sdNorm

Standard deviation of the used measure in the norm group.

Value

Returns the RCI for each person in the data set

Examples

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dataRci <- rci(pre="U1_GDS_G", post="U2_GDS_G", data=dat, rtt=.83, sdNorm=6.8)
hist(dataRci$rci, main="Histogram of RCI", xlab="RCI", breaks=30, col="blue")

zieglema/ClinicalSig documentation built on June 1, 2019, 6:03 p.m.