The Rational Basis Test is a standard of judicial review used by courts to evaluate laws or government actions that affect individuals' rights. Under this test, a law is considered constitutional if it is rationally related to a legitimate government interest. This means that the government must show a reasonable connection between the law and its purpose, but it does not require the law to be the best or most effective means of achieving that interest. This test is often applied in cases involving economic regulations or social welfare laws, where the government has broader discretion. It is less stringent than other tests, such as the Strict Scrutiny or Intermediate Scrutiny, which are used for laws that affect fundamental rights or suspect classifications, like race or gender.