Table 1.

Description of the addiction corpus comprised of five motivational interviewing studies

Study	Description	Sessions	Talk turns	Wordsf
ARCa	Brief alcohol intervention for first year college students with some indication of drinking related problems.	10	1,768	72,712
ESPSBb	Brief alcohol intervention for students intending to drink during their upcoming spring break trip.	20	5,266	182,738
ESP21c	Brief alcohol intervention for students turning twenty-one years old.	41	9,967	391,164
HMCBId	Brief drug intervention for adults presenting at primary care clinics who indicate drug use.	70	11,039	284,097
iCHAMPe	Brief marijuana intervention for college students with some indication of marijuana-related problems	7	1,950	74,213
Total		148	29,990	1,004,924

^aAlcohol Research Collaborative: Peer Programs [19].

^bEvent Specific Prevention: Spring Break [17].

^cEvent Specific Prevention: Twenty First Birthday [18].

^dBrief Intervention for Problem Drug Use and Abuse in Primary Care [15].

^eIndicated Marijuana Prevention for Frequently Using College Students [16].

^fExcludes punctuation.