pvals.ICC2a.inter {irrICC}

P-values of ICCa(2,1) under Model 2 with interaction.

Description

This function can compute several p-values associated with the Intraclass Correlation Coefficient (ICC) used to quantify intra-rater reliability coefficient under the random factorial ANOVA model with subject-rater interaction (Model 2). This function computes the p-value for each of the null values specified in the parameter gam.zero.

Usage

pvals.ICC2a.inter(dfra, gam.zero = 0)

Arguments

dfra

This is a data frame containing 3 columns or more. The first column contains subject numbers (there could be duplicates if a subject was assigned multiple ratings) and each of the remaining columns is associated with a particular rater and contains its numeric ratings.

gam.zero

This is an optional parameter that represents a vector containing an arbitrary number of null values between 0 and 1 for which a p-value will be calculated. If not specified then its default value will be 0.

Value

This function returns a vector containing p-values associated with the null values specified in the parameter gam.zero.

References

Gwet, K.L. (2014): Handbook of Inter-Rater Reliability - 4th ed. chapter 9, section 9.3.2 (page 245) Advanced Analytics, LLC.

Examples

#iccdata1 is a small dataset that comes with the package. Use it as follows:
library(irrICC)
iccdata1 #see what the iccdata1 dataset looks like
pvals.ICC2a.inter(iccdata1,c(0.15,0.20,0.25))