[[Randomization]]
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en:create:randomization [19.12.2018 11:07] – [Urns for Subgroup II] freekgilleen:create:randomization [06.07.2020 11:30] – [Step 2: Presentation of the Stimulus] iah601
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 ==== Step 2: Presentation of the Stimulus ==== ==== Step 2: Presentation of the Stimulus ====
  
-In **Combine Questionnaire**, drag the newsly created random generator question onto the page in the questionnaire where you want the participant to be assigned to an experimental group. Usually this is the page where the stimulus is presented.+In **Combine Questionnaire**, drag the newly created random generator question onto the page in the questionnaire where you want the participant to be assigned to an experimental group. Usually this is the page where the stimulus is presented.
  
 The random generator will now randomly draw one of the defined groups and store its code in a variable with the random generator's ID. For example, if the random generator question has the ID "RG01", the number drawn would be stored in the data set as variable "RG01". In the above example, code 1, 2 or 3 would be stored. The random generator will now randomly draw one of the defined groups and store its code in a variable with the random generator's ID. For example, if the random generator question has the ID "RG01", the number drawn would be stored in the data set as variable "RG01". In the above example, code 1, 2 or 3 would be stored.
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 It may be the case that you need to ensure equal distribution of experimental groups in two subgroups -- for instance, if you have 3 stimuli and both the women in the study, as well as the men, should be equally divided between all three conditions. It may be the case that you need to ensure equal distribution of experimental groups in two subgroups -- for instance, if you have 3 stimuli and both the women in the study, as well as the men, should be equally divided between all three conditions.
  
-To do so, you require an internal variable and two urns (with the same content). The following example assumes that the sex was queried on an earlier page in the multiple-choice question SD02. Also, that you have set up two urns with the IDS "women" and "men", both of which contain the numbers 1 to 3 (each one on a separate line).+To do so, you require an internal variable and two urns (with the same content). The following example assumes that the sex was queried on an earlier page in the multiple-choice question SD02. Also, that you have set up two urns with the IDs "women" and "men", both of which contain the numbers 1 to 3 (each one on a separate line).
  
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en/create/randomization.txt · Last modified: 20.04.2021 20:33 by sophia.schauer
 
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