Randomization Block Size Calculator
Calculates the number of assignments in a balanced randomization block. The worked condition keeps the inputs and convention visible for checking.
Set the labeled inputs
Randomization Block Size
A second look at the condition when the sample changes for randomization block size
Calculates the number of assignments in a balanced randomization block. The named quantity is randomization block size calculator. This is section 1 of the randomization block size discussion.
Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the randomization block size setup and section 1.
For randomization block size, preserve the source definition, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
Reading the planned inputs during an independent review for randomization block size
Block size should balance concealment, recruitment flow, and the number of treatment arms. The named quantity is randomization block size calculator. This is section 2 of the randomization block size discussion.
Four treatments with two replicates each give a block size of 8. This statement is conditional on the randomization block size setup and section 2.
For randomization block size, preserve the denominator choice, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
Where the method applies at the chosen parameters for randomization block size
Block size should balance concealment, recruitment flow, and the number of treatment arms. The named quantity is randomization block size calculator. This is section 3 of the randomization block size discussion.
Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the randomization block size setup and section 3.
For randomization block size, preserve the comparison group, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
When another method fits before comparing methods for randomization block size
Calculates the number of assignments in a balanced randomization block. The named quantity is randomization block size calculator. This is section 4 of the randomization block size discussion.
Four treatments with two replicates each give a block size of 8. This statement is conditional on the randomization block size setup and section 4.
For randomization block size, preserve the time boundary, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
A controlled alternative when the result is reused for randomization block size
Block size should balance concealment, recruitment flow, and the number of treatment arms. The named quantity is randomization block size calculator. This is section 5 of the randomization block size discussion.
Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the randomization block size setup and section 5.
For randomization block size, preserve the design boundary, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
What the result can support in the worked condition for randomization block size
Block size should balance concealment, recruitment flow, and the number of treatment arms. The named quantity is randomization block size calculator. This is section 6 of the randomization block size discussion.
Four treatments with two replicates each give a block size of 8. This statement is conditional on the randomization block size setup and section 6.
For randomization block size, preserve the rounding rule, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
A related calculation is sensitivity.
A check on the stated parameter before reporting for randomization block size
Calculates the number of assignments in a balanced randomization block. The named quantity is randomization block size calculator. This is section 7 of the randomization block size discussion.
Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the randomization block size setup and section 7.
For randomization block size, preserve the reference population, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
Questions about this calculation
When inputs change, does this result establish a causal relationship for randomization block size?
Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is randomization block size calculator.
For the worked condition, what belongs in the saved record for randomization block size?
Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is randomization block size calculator.
When software results differ, what should be checked before reusing this result for randomization block size?
Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is randomization block size calculator.
Before reporting, why might another program return a different number for randomization block size?
Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is randomization block size calculator.
When inputs change, when should the calculation be repeated for randomization block size?
Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is randomization block size calculator.
For the worked condition, can a boundary value be entered for randomization block size?
Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is randomization block size calculator.