Before publishing her test of musical aptitude, Professor Reed first administered the test to a representative sample of people. This was most clearly necessary for test

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Standardization involves administering a test to a normative sample in order to establish consistent and comparable results. By administering the test to a representative sample of people, Professor Reed was able to establish a standard against which future test-takers' scores could be compared. This ensures that the test is administered the same way each time and will produce reliable results. It also helps to establish the validity of the test by providing evidence that it accurately measures what it is intended to measure. Heritability, on the other hand, refers to the degree to which a trait is influenced by genetics and would not be relevant to the administration of a musical aptitude test.

Before Publishing Her Test of Musical Aptitude, Professor Reed First