Skip to main content

Table 2 Multilevel model results for overall effects

From: Preventing alcohol use with a universal school-based intervention: results from an effectiveness study

 

Alcohol use

Alcohol Attitudes

PBC

AEQ-A

Fixed parameters

    

Intercept

0.17 (0.07)*

2.17 (0.07)*

2.07 (0.05)*

2.30 (0.06)*

Group

−0.06 (0.09)

0.08 (0.10)

−0.04 (0.07)

0.19 (0.08)*

Time

0.02 (0.00)*

0.06 (0.00)*

0.01 (0.00)*

0.05 (0.00)*

Group x Time

−0.00 (0.01)

0.00 (0.00)

−0.00 (0.00)

−0.00 (0.00)

Random parameters

    

Level 1 Within subjects

3.84 (0.10)*

0.78 (0.03)*

1.07 (0.03)*

0.85 (0.03)*

Level 2 Between subjects

0.57 (0.09)*

1.12 (0.06)*

0.55 (0.04)*

0.84 (0.05)*

Level 3 Between classes

0.03 (0.03)

0.16 (0.04)*

0.03 (0.01)

0.10 (0.03)*

  1. Note. *p < .05. Parameter estimates and standard errors (in parentheses). Intervention group = 1, Control group = 0. Time coded monthly: 0, 4, 16 months.