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Field
Randomization Method
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Before
Randomization was done in an office by a computer. Blocking was conducted using the R package "blockTools". blockTools uses a matching algorithm to automatically group units with similar covariate profiles (Gerber & Green, 2012: 110). Then, blocked randomization was done using the "block_racommand" in "randomizr".
In the case of the website link provided to our partners, the randomization will be done on the fly using a random number generator.
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After
Randomization was done in an office by a computer. Complete randomization was conducted using the "complete_ra" command in the R package "randomizr", with "set.seed" to make the randomization reproducible.
In the case of the website link provided to our partners, the randomization will be done on the fly using a random number generator.
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