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).
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Regression model results | ||||
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Effect | Beta (S.E.) | d.f. | F | p |
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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 |
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