For 10 points, name this psychologist who developed a theory of learned helplessness.
A book by this author notes that the method of psychohistory, as presented in books such as Young Man Luther, tries to "postdict" the past. That book by him examines the presidential elections from 1900 to 1988 and found that American chose the candidate who had more of the title quality 18 out of 22 times. The ideas from that book by him were incorporated into his newest book Flourish, which uses the acronym PERMA to outline five components of well-being. This psychologist wrote a book that argues (*) optimism can be taught to people by discussing an experiment he conducted in which a member of various groups of "yoked pairs" could press a lever to end the administering of painful stimuli; that experiment run by this author of Positive Psychology concluded that anxiety and depression could be "taught" to humans. For 10 points, name this psychologist who developed a theory of learned helplessness.
A book by this author notes that the method of psychohistory, as presented in books such as Young Man Luther, tries to "postdict" the past.
Martin Seligman 