Final answer:
Jamie's use of a table of specifications for her Middle School Health Practices test helps establish content validity by ensuring that the test comprehensively covers the subjects and skills intended to be measured.
Step-by-step explanation:
Jamie uses a table of specifications while constructing the Desporte Test of Middle School Health Practices, which is a tool to ensure that the test covers the content it's intended to. This approach helps in establishing content validity, which is the extent to which a test measures all aspects of the concept it is designed to measure. By aligning test questions with the curriculum and the areas of knowledge and skills that should be assessed, Jamie can make sure that the test has a well-developed set of items that accurately reflect the intended content, thus providing evidence of its validity.
For instance, if the Middle School Health Practices curriculum includes topics like nutrition, exercise, and personal hygiene, the table of specifications will assist Jamie in ensuring that the test includes a balanced mix of questions covering each of these topics. This balanced representation supports the test’s content validity by accurately measuring the knowledge and health practices that middle school students are expected to possess.