Table 2.
Adolescence
|
Early adulthood
|
||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Participant substance use (adolescence)
|
Participant effortful control
|
Friends’ support for substance use
|
Frequency of use
|
Symptoms of abuse/dependence
|
|||||||||||
Grade 6-Alc | Grade 7-Alc | Grade 8-Alc | Grade 9-Alc | Grade 11-Alc | Partic.- EFC | Parent- EFC | Teach.- EFC | Partic.- FSU | Friend- FSU | Drug Talk | Age 22- Alc Freq. | Age 23- Alc Freq. | Age 22- Alc Sx | Age 23- Alc Sx | |
Grade 6-Alc | – | ||||||||||||||
Grade 7-Alc | 0.24 | – | |||||||||||||
Grade 8-Alc | 0.26 | 0.43 | – | ||||||||||||
Grade 9-Alc | 0.03ns | 0.18 | 0.30 | – | |||||||||||
Grade 11-Alc | 0.08* | 0.21 | 0.23 | 0.30 | – | ||||||||||
Partic.-EFC | −0.09* | −0.11* | −0.13 | −0.10** | −0.18 | – | |||||||||
Parent-EFC | −0.05ns | −0.11* | −0.11** | −0.08* | −0.13 | 0.34 | – | ||||||||
Teach.-EFC | −0.03ns | −0.04ns | −0.03ns | −0.08* | −0.07ns | 0.20 | 0.41 | – | |||||||
Partic.-FSU | 0.09* | 0.14 | 0.16 | 0.23 | 0.52 | −0.20 | −0.13** | −0.08* | – | ||||||
Friend-FSU | 0.06ns | 0.05ns | 0.07ns | 0.06ns | 0.25 | −0.07ns | −0.12** | −0.04ns | 0.26 | – | |||||
Drug Talk | 0.07ns | 0.10** | 0.18 | 0.15 | 0.39 | −0.12** | −0.17 | −0.14 | 0.37 | 0.52 | – | ||||
Age 22-Alc Freq. | 0.03ns | 0.08* | 0.05ns | 0.07ns | 0.27 | −0.08* | −0.05ns | 0.06ns | 0.25 | 0.14 | 0.17 | – | |||
Age 23-Alc Freq. | 0.02ns | 0.05ns | 0.09* | 0.05ns | 0.25 | −0.03ns | −0.05ns | 0.05ns | 0.17 | 0.16 | 0.15 | 0.61 | – | ||
Age 22-Alc Sx | 0.08* | 0.10** | 0.17 | 0.13 | 0.32 | −0.21 | −0.13** | −0.03ns | 0.32 | 0.22 | 0.22 | 0.42 | 0.35 | – | |
Age 23-Alc Sx. | 0.08* | 0.14 | 0.12** | 0.13 | 0.31 | −0.17 | −0.12** | −0.03ns | 0.30 | 0.23 | 0.23 | 0.45 | 0.43 | 0.60 | – |
MEAN | 0.55 | 0.61 | 0.65 | 0.69 | 0.93 | 3.35 | 3.30 | 3.72 | 1.28 | 0.74 | 2.40 | 3.16 | 3.21 | 1.34 | 1.42 |
SD | 1.76 | 1.69 | 1.82 | 1.99 | 1.46 | 0.48 | 0.54 | 0.79 | 1.43 | 1.06 | 1.32 | 2.13 | 2.18 | 1.09 | 1.07 |
Skew/Kurtosis | 4.83/25.92 | 3.90/16.98 | 4.04/18.09 | 3.94/17.12 | 1.60/1.56 | 0.26/0.34 | −0.20/−0.03 | −0.18/−0.56 | 0.99/0.15 | 1.01/−0.26 | 0.93/0.06 | −0.01/−0.97 | −0.02/−0.98 | 0.81/0.26 | 0.68/0.11 |
Post-Log Trans. Skew/Kurtosis | 2.68/7.10 | 2.28/4.56 | 2.26/4.45 | 2.31/4.48 | 0.97/−0.49 | n/a | n/a | n/a | 0.34/−1.32 | n/a | 0.40/−0.98 | −0.78/−0.71 | −0.78/−0.74 | −0.06/−0.91 | −0.20/−0.82 |
Alc = Alcohol; Partic. = Participant report; Parent = Parent report; Teach. = Teacher report; EFC = Effortful Control; Friend = Friend report; FSU = Friend Substance Use; Freq. = Frequency; Sx = Symptoms of abuse/dependence
All correlations are significant at p<0.001 except when otherwise specified.
p<0.01,
p<0.05,
p>0.05