Quasi-experimental design should always be used instead of experimental design when the researcher does not know how to conduct preexperimental designs

President ________ appointed the first President's Commission on Civil Rights in ________

a. Roosevelt; 1942 b. Lincoln; 1863 c. Truman; 1946 d. Wilson; 1920

The process of solving the problems of constituents is called ___________.

Fill in the blank(s) with the appropriate word(s).