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. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: Health Psychol. 2016 Aug;35(8):908–918. doi: 10.1037/hea0000396

Table 6.

Lagged Models Evaluating IATs as Longitudinal Predictors of Alcohol Consumption

Logistic portion of model Count portion of model
Predictor Exp (b) Z 95% CI Exp (b) Z 95% CI
Lag 2
(n = 386)
Sex 0.61 −2.20* 0.40–0.95 0.96 −0.50 0.83–1.12
Previous Consumption 0.40 −3.60*** 0.25–0.66 1.07 13.18*** 1.06–1.08
Time 0.89 −2.37* 0.81–0.98 0.96 −2.20* 0.93–1.00
Identity IAT 1.01   0.03 0.64–1.60 1.25 2.80** 1.071.47
Excitement IAT 0.92 −0.40 0.60–1.40 1.17 2.13* 1.011.36
Approach IAT 0.51 2.50* 0.300.86 1.03 0.38 0.88–1.21

Lag 3
(n = 379)
Sex 0.50 −2.42* 0.28–0.88 1.00 0.03 0.84–1.20
Previous Consumption 0.18 −1.12 0.01–3.71 1.07 8.88*** 1.05–1.08
Time 0.92 −1.11 0.80–1.06 0.99 −0.28 0.94–1.04
Identity IAT 1.42   1.29 0.83–2.40 1.33 2.85** 1.091.61
Excitement IAT 0.66 −1.47 0.38–1.15 1.15   1.52 0.96–1.37
Approach IAT 0.50 1.97* 0.251.00 0.99 −0.05 0.81–1.22

Lag 4
(n = 363)
Sex 0.51 −2.28* 0.29–0.91 0.92 −0.74 0.75–1.14
Previous Consumption 0.26 −1.92 0.07–1.03 1.06 8.44*** 1.05–1.07
Time 0.89 −1.37 0.76–1.05 0.97 −0.93 0.91–1.03
Identity IAT 1.36   1.01 0.75–2.47 1.28 2.20* 1.031.59
Excitement IAT 0.91 −0.30 0.49–1.68 1.16   1.52 0.96–1.42
Approach IAT 0.49 −1.95 0.24–1.00 0.98 −0.16 0.80–1.20

Lag 5
(n = 344)
Sex 0.57 −1.85 0.32–1.04 1.00 −0.01 0.81–1.24
Previous Consumption 0.35 −3.49*** 0.19–0.63 1.06 8.24*** 1.04–1.07
Time 0.82 −1.69 0.66–1.03 0.99 −0.20 0.91–1.08
Identity IAT 1.91   1.95 1.00–3.66 1.44 3.25** 1.161.80
Excitement IAT 0.91 −0.29 0.49–1.71 1.04 0.33 0.82–1.31
Approach IAT 0.48 2.03* 0.230.97 1.19 1.32 0.92–1.55

Lag 6
(n = 315)
Sex 0.60 −1.56 0.32–1.14 1.06 0.49 0.83–1.36
Previous Consumption 0.45 −4.23*** 0.31–0.65 1.04 5.99*** 1.03–1.06
Time 0.79 −1.15 0.53–1.18 1.04 0.45 0.88–1.23
Identity IAT 1.70   1.49 0.85–3.42 1.38 2.60** 1.081.76
Excitement IAT 0.97 −0.10 0.50–1.87 1.21 1.59 0.96–1.52
Approach IAT 0.65 −1.01 0.28–1.50 1.08 0.52 0.81–1.45

Lag 7
(n = 276)
Sex 0.79 −0.70*** 0.40–1.54 0.86 −1.20 0.68–1.10
Previous Consumption 0.51 −4.76*** 0.38–0.67 1.04 5.48*** 1.02–1.05
Identity IAT 1.14   0.31 0.50–2.61 1.50 2.86** 1.14–1.99
Excitement IAT 0.68 −1.01 0.32–1.45 1.19   1.30 0.92–1.54
Approach IAT 0.62 −0.96 0.24–1.63 0.99 −0.09 0.73–1.34

Note. N = 506. Sex was coded 0 = men, women = 1. IAT = Implicit Association Test. IATs were scored such that higher scores indicate stronger associations with the concepts in the IAT’s name. Bolded values indicate statistically significant IAT scores Consumption = self-reported number of drinks consumed on a typical week. Lagged models were run such that each possible lag (from 2 to 7) was evaluated using the following strategy: Tj+2 drinking = Tj IATs, where j = a given assessment time point. Exp (b) = the exponentiated coefficient.

***

p < .001.

**

p < .01.

*

p < .05.