@article{MatuschekKliegl2017,
  author    = {Hannes Matuschek and Reinhold Kliegl},
  title     = {On the ambiguity of interaction and nonlinear main effects in a regime of dependent covariates},
  journal   = {Behavior research methods : a journal of the Psychonomic Society},
  volume    = {50},
  number    = {5},
  pages     = {1882 -- 1894},
  doi       = {10.3758/s13428-017-0956-9},
  year      = {2017},
}