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Commentary

Dr. Connolly is Associate Professor, University of Tennessee Center for the Health Sciences, Program in Physical Therapy, 800 Madison Ave, Memphis, TN 38163

This excerpt was created in the absence of an abstract.

The authors of this article are to be commended on their attempts to provide reliability studies for the Movement Assessment of Infants (MAI). The development of an assessment tool by physical therapists and the necessary documentation to allow its acceptance by other disciplines is certainly a major undertaking. The paper's purpose is to examine systematically the reliability of the MAI as a tool, and I believe that the authors have fulfilled their intent. Several questions should be raised, however, about the extent of the test's reliability.

The issue of reliability of an assessment tool is an important one. General agreement among statisticians is that a test should have a reliability coefficient of at least .94.¹ Others, however, believe that a minimum of .90 is acceptable. The higher standards of above .90 are rarely attained, and many useful tests have reliability coefficients in the .80s or slightly below....

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