What does MESSY stand for?

Matson Evaluation of Social Skills with Youngsters

This definition appears very rarely and is found in the following Acronym Finder categories:

Science, medicine, engineering, etc.
Organizations, NGOs, schools, universities, etc.

Other Resources:

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Middle East Strategic Studies Center Ministry of Education Science Sports and Culture (Japan) Mess Corporal Mercury Surface, Space Environment, Geochemistry and Ranging (NASA mission to Mercury) Matson Evaluation of Social Skills for Individuals with Severe Retardation Message Processing Misters Multispectral Electronic Self-Scanning Radiometer Messieurs (plural form of Mister) Mess Sergeant		Marine Engineering, Science and Technology (federation) Matter Energy Space Time (Dianetics & Scientology Technical Dictionary) Maximal Electroshock Seizure Threshold (Model) Meltwater Entrepreneurial School of Technology (Accra, Ghana) Middle European Summer Time (GMT +0200) Ministry of Education, Science & Technology (South Korea) Ministry of Environment, Science and Technology (Ghana) Missile Electrical System Test Mouse-Ear-Swelling-Test (method for the detection of skin sensitizing properties of substances) Multinational Entry Into Service Team

Samples in periodicals archive:

The exception was Santich and Kavanagh (1997), who administered the Matson Evaluation of Social Skills with Youngsters (Matson, Rotatori, & Helsel, 1983) and reported an effect size of -0.

A meta-analysis of the social competence of children with learning ...