To control order effects in questionnaires containing paired comparisons, Ross (1934) described an optimal ordering of the pairings. The functions in this package construct the optimally spaced, balanced ordering of pairings. They can also create subsets of the pairs for either a matrix-sampling design or a fully incomplete design.

The package can be installed from the command line in R:

```
devtools::install_github("zief0002/ross")
```

The package documentation is availabale at: https://zief0002.github.io/ross/

Ross, R. T. (1934). Optimum orders for the presentation of pairs in the method of paired comparisons. *Journal of Educational Psychology, 25*, 375–382.

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