Which well-known psychology professor at Harvard used, and advocated the use, of LSD during the 1960s?

Tannen writes, "Diana often begins statements with ‘Let's'." This is Diana's way of

a. getting others to do what she wants by winning agreement first b. making suggestions, not demands. c. both of the above d. neither of the above

In marital aggression, the couple goes through all of the following stages EXCEPT __________

a) an acute battering incident b) the loving contrition stage c) the tension-building stage d) the fight-or-flight stage