Errors of Misclassification in Neo-Piagetian Research

Errors of misclassification associated with two concept acquisition criteria and their effects on the actual significance level and power of a statistical test for sequential development of these concepts are the focus of this paper. This study provides a link between various mis classification models and subsequent statistical analyses. In addi tion, explicit illustrations of actual significance levels and power val ues are provided for different misclassincation models. A partial corrective for errors of misclassification is suggested and investi gated via Monte Carlo sampling.