Examples of randomization

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We will discuss this randomization in the next section.
General practices were randomized (cluster randomization) to intervention and control groups on a 1:1 basis.
We assigned carers to the trial arms using a block randomization design.
Their performance and error properties are analyzed, showing effectiveness of the randomization technique.
This characteristic was used as a stratification factor at the time of randomization.
Intervention services were offered for 24 months following randomization.
The randomization was stratified according to the presence or absence of psychotic features associated with the manic episode and by center.
Randomization occurred within a maximum period of 3 days of hospital admission.
The randomization system allowed centers to unblind treatment allocation in case of emergency.
A different randomization was used for each block.
Nonetheless, the most adequate all-purpose assurance of lack of initial biases between groups is randomization.
We can now apply this function to situations where randomization is not essential and check its predictions.
This adds to error and can only be overcome with extensive replication and careful randomization.
Randomization testing is used to derive empirical significance thresholds for every model selection step in the procedure.
Randomization transforms one knowledge segment into another by making random changes.
In most cases, however, we used randomization analysis.
Alternatively, higher early depression scores in the intervention group could reflect a failure of randomization or simple random fluctuation.
The randomization statistic was the correlation coefficient between counts from 10,000 randomizations.
Eleven patients were prescribed ' nothing ' at randomization, but nine of these actually received treatment during the following 8 months.

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