HomeCare provides healthcare aides who work in the homes of its clients, who are generally elderly or disabled persons. Some of the clients are bedridden and require total personal care. HomeCare screens applicants for employment by using a strength test—the applicants must be able to lift a dummy weighing 150 pounds. The strength test disqualifies most female applicants, as well as a majority of Asian and Hispanic male applicants. What must HomeCare do to show that the strength test has validity under the Uniform Guidelines? Should HomeCare use a construct validity, a content validity, or a criterion-related validity approach for the strength test? Explain.