The previous discussion on reliability and validity highlights several issues associated with the MMPI. These include moderate levels of reliability, extensive length, and problems related to the construction of the scales, such as item overlap, high intercorrelations among scales, and multidimensional poorly defined variables.
Some of the criticisms of the original MMPI relating to obsolete norms, offensive items , and poorly worded items have been largely corrected with the publication of the MMPI-2 and MMPI-A.
The MMPI also has a number of strengths, along with other weaknesses.