ProQuest One Psychology This link opens in a new windowProQuest One Psychology is a one-stop shop for psychological science resources including research studies, tests & measures, journal content, and therapies. With over 1,200 full-text scholarly journals, 3,000 videos segments including counseling sessions for modeling treatment approaches, 1,700 counseling session transcription, and 5,000 ebook titles ProQuest One Psychology supports those studying, teaching, and researching psychology.