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. Author manuscript; available in PMC: 2008 Dec 12.
Published in final edited form as: Infant Behav Dev. 2005 Dec;28(4):431–444. doi: 10.1016/j.infbeh.2005.03.002

Fig. 1.

Fig. 1

Novelty score over time by cocaine status. Bars represent 95% confidence intervals. The joint test of cocaine (d.f.: 2, 296, F = 2.36, p < 0.05) was significant, indicating that at 12 months cocaine-exposed infants had lower scores (Beta (S.E.) = −1.54 (0.78), d.f.: 1, 296, t = −1.98, p < 0.024).


Regression model results

Effect Beta (S.E.) d.f. F p

Intercept 58.814 (0.639)
Cocaine −0.972 (0.895) (2, 296) 2.36 <0.05
Time −0.069 (0.793) (1, 294) 0.01 0.9306
Cocaine × Time −0.568 (1.124) (1, 296) 0.26 0.6135