A psychological test that measures what we intend it to measure is said to be:

Who built the first turnpikes in the united states? a) the national government b) state governments c) private companies d) town councils

Which example define natural rights ?

Which of the following discoveries would be most likely to cause a scientific paradigm shift? a. the discovery of more rings around uranus b. the discovery of a new pathogenic virus transmitted by mosquitoes c. the discovery that a dormant volcano is showing signs of activity d. the discovery of a new species of salamander in the amazon rainforest e. the discovery that excess heat is radiating from the center of the earth and causing global climate change