Baseline conditions in structural induction: comment on Pitt, Smith and Klein (1998)

M. A. Pitt, K. L. Smith, and J. M. Klein (1998) claimed that a baseline condition is necessary in experiments using the structural induction paradigm (S. A. Finney, A. Protopapas, & P. D. Eimas, 1996; C. Pallier, N. Sebastian-Galles, T. Felguera, A. Christophe, & J. Mehler, 1993) to correctly interpret interaction effects. In this article it is shown that this constitutes a misunderstanding of the interpretation of statistical interaction and that a baseline condition offers little unless comparisons between cells of different target types within induction conditions are necessary.