According to one study on violence and force, what percentage of married people experienced physical and symbolic violence?

If you are concerned about improving your voice, all of the following exercises can be done EXCEPT

a. breath control. b. control of pitch. c. pronunciation control. d. articulatory control.

Choose the research term that answers the question, "Is the measurement of the dependent variable different at time 2 than at time 1?"

A. Factorial design B. Pretest-posttest C. Posttest only