Social research is evidence-based so answers that are derived are static, that is, they never change

The best alternative to using groups that have been randomly assigned to conditions is to use

A) groups that have been assigned in a biased manner. B) a no control-group design. C) a nonequivalent control-group design in which the groups appear similar on relevant variables. D) a nonequivalent control-group design in which the groups appear different on relevant variables.

When was the Thirteenth Amendment banning slaverypassed?

a. when the South seceded from the Union b. during the Civil War c. immediately after the Civil War d. immediately after Reconstruction