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Hello, I am doing an experiment in Qualtrics and my independent variable is physical vs. digital product and my dependent variable is willingness to pay for the product. I also have a mediator, moderator and a covariate. With Qualtrics, I want to randomly show to respondents either the physical product or the digital product and the rest of the questions are the same for both of the 2 conditions. I want the respondents to be evenly distributed between the 2 conditions (physical vs. digital).

I read that I can use the Randomizer to do this but when I only use the Randomizer option and I download the data, I do not see to which condition which respondent was assigned to. (Please see picture 1).

After that, I did a new experiment but this time, I used the Randomizer, 2 Embedded data sections for the 2 conditions (physical vs. digital product), and 2 branches for what the people with physical product will see and what the people with digital product will see. When I downloaded the data using this option, I see a column to which condition the respondent was assigned to. However, I do not know whether this is the right way in which I have to do the action for randomization in Qualtrics in order to see which respondent was assigned to which condition.  Is this the correct way or not?

Also, when I do the Randomizer, 2 Embedded data sections, and the 2 Branches situation, the same blocks that I added in the 2 branches (willingness to pay, psychological ownership, technological savviness, manipulation check, preference, and demographics) are still at the end of my experiment. Do I have to delete them, so that they are not shown again to the participants after they have been shown to them when the participants were going through the 2 branches paths? When I try with the preview option, I do not see the questions again (those that are below the “End of survey”) but I am not sure whether the respondents can see them in any way. (Please see pictures 2 and 3).

 

However, I do not know whether this is the right way in which I have to do the action for randomization in Qualtrics in order to see which respondent was assigned to which condition.  Is this the correct way or not?​​

@monikat Yes, that’s the right way

Do I have to delete them, so that they are not shown again to the participants after they have been shown to them when the participants were going through the 2 branches paths? 

No you don’t have to delete them, the respondent will always reach and End of Survey before them. You can leave them there or delete them just for better looks of the survey flow, it won’t affect any thing


Hi Nam Nguyen,

 

Thank you very much for the reply!

 

Best wishes,

Monika

 


@monakit,

Any easier way to do it would be:

Randomizer 1 element Evenly Presented
Group Physical
Set Embedded Data: Group = Physical product
Block: Physical product
Group Digital
Set Embedded Data: Group = Digital product
Block: Digital product
... The rest of the blocks ...

 


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