Rotations and randomizations need to be removed from the data prior to creating the data file.
If the questionnaire asks:
Q1 Which of these have you eaten in the past week? RANDOMIZE ORDER OF 1 AND 2 McDonald’s Taco Bell None of these
Then half the sample will have been asked:
Q1 Which of these have you eaten in the past week? McDonald’s Taco Bell None of these
And the other half will have been asked:
Q1 Which of these have you eaten in the past week? Taco Bell McDonald’s None of these
When the data is exported, it should be done using the order in the questionnaire. That is, even though Taco Bell was shown first half the time and second half the time, the data file should be created as if Taco Bell was always shown second.
If order effects are of interest (and usually they are not), an additional variable should be included in the data file indicating who saw which order.
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