Table 4. Transition Patterns from LTA: Descriptive Statistics and Cohen's d for all Comparisons Calculated across 25 Multiple Imputations.
| Panel A: Transition Pattern Descriptive Statistics | |||||||||||
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| LC W1➔ | LC W2➔ | LC W3 | N | % | M freq | M quan | d freq | d 95 % CI | d quan | d 95 % CI | Tran # |
| AP/NU | AP/NU | MP- | 8 | 1.04 | 51.80 | 1.23 | 0.43 | -0.27 - 1.13 | 0.35 | -0.35 - 1.05 | 1 |
| MP- | AP/U | AP/U | 8 | 1.04 | 242.91 | 4.66 | 2.21 | 1.49 - 2.93 | 2.55 | 1.83 - 3.27 | 2 |
| MP- | MP- | MP- | 9 | 1.18 | 43.62 | 1.23 | 0.25 | -0.41 - 0.91 | 0.36 | -0.29 - 1.02 | 3 |
| AP/NU | MP- | AP/U | 10 | 1.30 | 258.05 | 5.30 | 2.11 | 1.47 - 2.75 | 2.72 | 2.06 - 3.37 | 4 |
| AP/NU | MP+A | MP+S | 11 | 1.44 | 237.31 | 4.51 | 2.08 | 1.46 - 2.69 | 2.32 | 1.70 - 2.94 | 5 |
| AP/NU | AP/NU | AP/U | 14 | 1.83 | 213.68 | 3.50 | 1.84 | 1.29 - 2.38 | 1.81 | 1.27 - 2.36 | 6 |
| MP+A | AP/U | AP/U | 14 | 1.83 | 263.58 | 6.35 | 2.17 | 1.62 - 2.72 | 3.57 | 2.98 - 4.15 | 7 |
| AP/NU | MP+A | AP/U | 15 | 1.96 | 106.03 | 3.48 | 0.89 | 0.37 - 1.41 | 1.82 | 1.29 - 2.35 | 8 |
| AP/NU | AP/U | AP/U | 15 | 1.96 | 498.56 | 5.08 | 12.02 | 11.06 - 12.99 | 2.73 | 2.18 - 3.27 | 9 |
| AP/NU | MP- | MP- | 17 | 2.22 | 22.19 | 0.98 | 0.02 | -0.47 - 0.50 | 0.19 | -0.29 - 0.68 | 10 |
| MP+A | MP+A | MP+A | 17 | 2.22 | 207.38 | 2.55 | 1.37 | 0.87 - 1.86 | 1.15 | 0.66 - 1.65 | 11 |
| MP- | AP/NU | AP/NU | 21 | 2.74 | 34.07 | 1.03 | 0.14 | -0.29 - 0.58 | 0.22 | -0.21 - 0.66 | 12 |
| MP+S | AP/U | AP/U | 29 | 3.80 | 190.99 | 4.04 | 1.50 | 1.11 - 1.89 | 2.04 | 1.64 - 2.44 | 13 |
| AP/NU | MP+A | MP+A | 42 | 5.49 | 67.27 | 2.58 | 0.47 | 0.15 - 0.79 | 1.14 | 0.82 - 1.47 | 14 |
| AP/NU | AP/NU | MP+A | 90 | 11.76 | 67.56 | 2.04 | 0.44 | 0.21 - 0.67 | 0.77 | 0.54 - 1.002 | 15 |
| AP/NU | AP/NU | AP/NU | 400 | 52.29 | 20.43 | 0.69 | - | - | - | - | 16 |
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| Panel B: Transition Pattern Mean Comparisons | |||||||||||
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| Tran # V Tran # | N1 | N2 | M1 | M2 | d freq | d 95 % CI | d quan | d 95 % CI | |||
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| 7+8+12 V 2+4 | 58 | 18 | 186.54 | 251.32 | -0.21 | -0.74 - 0.32 | -0.16 | -0.69 - 0.37 | - | ||
| 2+4+6+7+8+12 V 5+10+13+14 | 90 | 160 | 203.72 | 94.01 | 0.42 | 0.16 - 0.68 | 0.64 | 0.37 - 0.90 | - | ||
| 7+8+12 V 15 | 58 | 400 | 186.54 | 20.43 | 1.22 | 0.93 - 1.50 | 1.96 | 1.66 - 2.27 | - | ||
| 2+4 V 15 | 18 | 400 | 251.32 | 20.43 | 1.87 | 1.38 - 2.36 | 2.32 | 1.82 - 2.82 | - | ||
| 5+10+13+14 V 15 | 160 | 400 | 94.01 | 20.43 | 0.48 | 0.29 - 0.66 | 0.82 | 0.63 - 1.00 | - | ||
| 1+3+9 V 15 | 34 | 400 | 34.83 | 20.43 | 0.14 | -0.21 - 0.49 | 0.24 | -0.10 - .60 | - | ||
| 2+4+6+7+8+12 V 15 | 90 | 400 | 203.72 | 20.43 | 1.16 | 0.92 - 1.40 | 1.76 | 1.51 - 2.02 | - | ||
Note. In Panel B all Cohen ds significant unless marked by non-significantns; W = wave, LC = latent class, ➔ reflects that the W1 to W2 to W3 columns in Panel A reflect classes of transitions across the 3 waves, Tran = transition pattern, AP = accurate perception, NU = non-user, U = user, MP = misperception, + = overestimation consistent with adolescents' own initiation of SU and - = under estimation consistent with the adolescents' own non-use, freq = frequency, quan = quantity. In Panel A, class name-class name-class name under LC (W1-W2-W3) refers to latent classes at each wave. For Panel B, Tran # reflects the transition patterns that were combined and then compared (V) For instance, the first one, 7+8+12 means that Transition Pattern numbers 7, 8, and 12 from the last column in panel A were combined and then compared to Transition patterns 2 and 4.