Skip to main content

Table 3 Procedure of statistical analysis

From: Observation and execution of upper-limb movements as a tool for rehabilitation of motor deficits in paretic stroke patients: protocol of a randomized clinical trial

Analysis i

Time point

Hypothesis

Nominal level αi

Detectable effect δi

Power

1

Interim analysis

Video vs. standard

0.01

0.7

80%

  

Video vs. non-video

0.01

0.7

80%

2

Final analysis

Video vs. standard

0.035

0.5

90%

  

Video vs. non-video

0.01 or 0.045

0.47 or 0.55

90%