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. Author manuscript; available in PMC: 2009 Jan 14.
Published in final edited form as: J Abnorm Psychol. 2008 May;117(2):428–434. doi: 10.1037/0021-843X.117.2.428

Table 1.

Participant Demographic Characteristics

Instructed-Yes
(n = 9)
Instructed-No
(n = 9)
Characteristic M SD M SD
Age 23.2 3.5 25.7 6.2
Cigarettes per day 21.1 2.2 21.7 3.5
Years smoking 7.8 2.0 8.1 5.1
Quit attempts 3.8 5.0 0.9 1.3
Education 13.2 1.7 13.1 1.4