Assigning subjects randomly to the experimental and comparison groups ensures that this does not affect the assignment of subjects to groups.
A. systematic bias
B. spuriousness
C. field effects
D. nonequivalence
A. systematic bias
You might also like to view...
Categorical grants from the national government can be spent only for specific programs
Indicate whether the statement is true or false
Mass transit systems in heavily trafficked metropolitan areas are significant sources of revenue for city governments
Indicate whether this statement is true or false.
In the state of Oregon, all elections, including presidential elections, are conducted exclusively:
A) on the Internet. B) at polling places located inside school buildings and public libraries. C) through telephone. D) at polling places located in supermarkets. E) by mail.
President Roosevelt's chief "administrator of relief" was
a. George Norris. b. John L. Lewis. c. Mary McLeod Bethune. d. Harold Ickes. e. Harry Hopkins.