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Table 5 Simulation results for the design in Fig. 2: the estimated means, based on 500 replicates, are reported for coefficients in model (4)

From: Time-varying SMART design and data analysis methods for evaluating adaptive intervention effects

Parameter estimation

 

β 12

β 23

β 32

 

(first-stage interventions A 1)

(second-stage interventions for non-responders A 2NR )

(time of intervention T 2)

True value

0.450

0.40

2.0

Joint model

Estimate

0.456

0.441

1.767

MSE

0.013

0.017

0.168

CI%

95.6 %

95.6 %

93.6 %

Length of CI

0.482

0.536

1.452

TVMEM

Estimate

0.388

0.439

4.046

MSE

0.016

0.017

4.297

CI%

94.0 %

96.0 %

0.0 %

Length of CI

0.489

0.547

1.442

  1. CI%: Coverage probability of the 95 % confidence interval
  2. MSE mean squared error