| ICC-package | Intraclass Correlation Coefficient |
| effort | Plots the optimum 'k' measures per individual (or group), based upon a fixed total researcher effort. |
| ICCbare | Simple function to estimate the Intraclass Correlation Coefficient |
| ICCbareF | Simple function to estimate the Intraclass Correlation Coefficient |
| ICCest | A function to estimate the Intraclass Correlation Coefficient |
| Nest | A function to calculate the N individuals/groups required to estimate the ICC with a desired confidence interval |