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Table 1 Simulation parameters

From: Evaluation of statistical methods used in the analysis of interrupted time series studies: a simulation study

Parameter

Symbol

Parameter Values

Intercept

β0

0

Pre-interruption slope

β1

0

Level change

β2

0, 0.5, 1, 2

Change in slope post-interruption

β3

0, 0.1

Autocorrelation coefficient

ρ

0, 0.2, 0.4, 0.6, 0.8

Variance of white noise error component

σ2

1

Number of data points

 

6, 8, 10, 12, 14, 16, 18, 20

24, 28, 32, 36, 40, 44, 48, 52, 56

60, 80, 100