Refer to Table 11.4. Fit the interaction model logit[P(Y 2 ¤ j)] = α j + β

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Refer to Table 11.4.

Fit the interaction model

logit[P(Y2 ‰¤ j)] = αj + β1x + βy1 + β3 xy1

that constrains effects {β1x + β2 y1 + β3 xy1} to follow the pattern (τ, τ, λ + σ, λ) for the active group and (τ, τ, σ, 0) for the placebo group. Interpret λ̂.


Table 11.4:

Time to Falling Asleep, by Treatment and Occasion Time to Falling Asleep Follow-up < 20 > 60 Treatment Initial 20-30 30-

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