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. Author manuscript; available in PMC: 2019 Oct 1.
Published in final edited form as: Alcohol Clin Exp Res. 2018 Aug 28;42(10):2000–2010. doi: 10.1111/acer.13850

Table 4.

Differences in theoretical correlates of en bloc (“blackouts”) and fragmentary blackouts (“brownouts”) among college students with past-year history of alcohol-induced memory impairment (N = 350).

Blackout Brownout Paired samples t-test
Determinant (scale range) M (SD) M (SD) t(349) 95% CI
Outcome beliefs (1–5)
 Good things would happen. 1.80 (1.02) 2.34 (1.04) −12.41 −0.62, −0.45
 Bad things would happen. 3.92 (1.07) 3.50 (1.03) 7.75 0.32, 0.53
Attitudes (1–5) 1.82 (0.94) 2.33 (0.95) −13.31 −0.59, −0.44
Injunctive norms (1–5)
 Personal approval 2.09 (1.14) 2.60 (1.10) −9.79 −0.62, −0.41
 Perceived approval 2.95 (1.11) 3.35 (1.11) −9.26 −0.49, −0.32
Female descriptive norms (0–100)
 % by end of senior year 58.75 (22.29) 70.28 (23.18) −14.73 −13.07, −9.99
 % in a typical month 39.76 (22.59) 50.83 (22.73) −14.91 −12.54, −9.62
Male descriptive norms (0–100)
 % by end of senior year 67.58 (23.24) 73.46 (23.09) −8.55 −7.23, −4.53
 % in a typical month 50.22 (23.90) 58.64 (22.59) −10.70 −9.96, −6.87
Self-efficacy (0–100) 80.22 (24.87) 74.24 (24.94) 6.96 4.29, 7.67
Intentions (1–6) 2.01 (1.49) 2.46 (1.59) −7.20 −0.57, −0.32

Note. CI = confidence interval. Higher scores indicate stronger agreement, more positive attitudes, and stronger approval. All paired-sample p-values < .001.