Regulatory legislation at the start of the twentieth century primarily dealt with __________

The two types of independent variables are

A) spurious and representative. B) iconic and eidetic. C) parametric and nonparametric. D) manipulated and nonmanipulated.

Who exercised a powerful influence as Secretary of State during the Eisenhower administration?

A) Thomas Walsh B) William Smith C) John Foster Dulles D) Robert Stone E) Anthony Speck