Are the MSA tests standardized tests?

No, MSA (Measurement System Analysis) tests are not standardized tests in the same way as, for example, the SAT or ACT. While there are established statistical methods used in MSA, the specific tests and their application are tailored to the specific measurement system being analyzed. There's no single, universally accepted MSA "test" with a fixed format and scoring system. The methods used depend on the type of data (continuous, attribute, etc.) and the goals of the analysis.