The Multitrait-Multimethod Matrix is used to evaluate construct validity; Sawilowsky (2002) created the I test to analyze the matrix. This article examined the robustness and power of the Sawilowsky I test. Ad hoc critical values were determined to improve the statistical power of the technique for analyzing the Multitrait-Multimethod Matrix.
Cuzzocrea, John L. and Sawilowsky, Shlomo
"Robustness to Non-Independence and Power of the I Test for Trend in Construct Validity,"
Journal of Modern Applied Statistical Methods:
1, Article 19.
Available at: http://digitalcommons.wayne.edu/jmasm/vol8/iss1/19