In its general form, the time-series design is similar to a

The purpose of the literacy tests that were used in the southern states after 1870 was to

a. keep schoolteachers employed. b. keep illegal aliens from voting. c. void illegally-cast ballots. d. ensure that only well-informed people voted e. discourage African Americans from voting.

After the statement of the problem has been clearly defined and the major variables identified, the next step in developing a research hypothesis is to

A) test the problem statement on research participants. B) operationally define the variables. C) analyze the data. D) interpret the results.