Sentence examples for blocks of variable length from inspiring English sources
Balanced centre-stratified randomization with blocks of variable length.
Randomisation lists were generated with blocks of variable length in random sequence, unknown to clinicians.
Randomisation is performed, stratified by centre, in blocks of variable length.
The randomisation is in randomly permuted blocks of variable length, stratified by study centre, and by gestational age.
For each centre, a random sequence of permuted blocks of variable length was generated by the Clinical Trial Centre Leipzig.
Randomization will be stratified by center using blocks of variable length from a reproducible SAS PROC PLAN code.
The randomisation schedule will be generated using permuted blocks of variable lengths by an independent statistician.
Randomization will be performed using sequences obtained with an automated random sequence generation algorithm following a blocking scheme of variable length with allowance for restricted unbalance of at most three.
The video blocks and washout blocks were separated by delay intervals of variable length (3.3 12.1 s between washout and video blocks and 1.3 4.1 s between video and washout blocks) (Fig. 2).
In many cases these blocks are separated by intervening stretches of variable length in the different subfamilies.
The BOLD response during each experimental task block was modeled as a boxed-car covariate of variable length in SPM8 using a human canonical hemodynamic function.
