The Obama administration successfully found and killed Osama bin Laden

Which of the following is a consequence of the rise of partisanship in the House and Senate with respect to the presidency?

a. Presidents are less likely to use executive orders. b. Congress is more willing to criticize the president on military and foreign policies. c. Congress has removed the Senate trial requirement from the impeachment process. d. Presidents are far less likely to engage in military conflicts.

What is the common purpose of using the double blinding and deception techniques?

a. they are more economical and easier to use than randomization or matching b. they keep participants' perceptions of the experiment constant across different conditions of the experiment c. they eliminate the effects of most known extraneous variables d. they eliminate experimenter bias