Software, 360 In other words, I want to fix blocks containing these sentences under the Randomizer. New Hire Reputation The JS is identical across blocks. Reputation 
It works by keeping count of how many times it picks each item in the randomization. See image below. Customer Experience Management New Hire https://www.qualtrics.com/community/discussion/comment/31170#Comment_31170, https://www.qualtrics.com/community/discussion/comment/31171#Comment_31171, https://www.qualtrics.com/community/discussion/comment/34518#Comment_34518, Customer Experience Management
Then randomly present 1 of the 4.
It works beautifully. Surveys, Onboarding & It will ensure that respondents are randomly assigned to your three conditions evenly instead of just randomly. Feedback, Customer Survey
New Hire Feedback, Voice of
I've attached a screenshot of the current part of my flow. Customer Software, Employee
Software, 360 Once that's done, as many items as are needed are picked from the top of the list. Surveys, Onboarding & Pulse
Feedback, Voice of Anyone any idea what can be happening here? Engagement
There should be two branches that contain the order of the blocks for the condition chosen by the randomizer. Software, 360
New Hire how does the evening out work in qualtrics? Software, 360 
Long answer: You create a randomizer in the survey flow and present 8 items making sure not to repeat. 
Employee Software, Employee Management, Qualtrics Engagement
However, when i sent out this survey, all participants were given the first condition. So my script was targeting the previous question always (contains('td', 'Unable to rate') had a length of 2 instead of 1), Customer Experience Management
I previewed the survey a few time and to see it randomizes.
Surveys, Onboarding & You can uncheck evenly present elements and then try out the randomizer. What have I done wrong?
Feedback, Customer Survey This is helpful. Feedback, Customer Survey Surveys, Online Pulse
Before each condition, I want to show a sentence like "This is Condition 1"; "This is Condition 2" according to the order the condition appears.
Software, Website & App Customer Experience Management You need to change this to be 1 in each randomizer. However, the estimated response time and the progress bar do not take that into account. I noticed that the blocks it do not seem to randomize. Engagement
Is using this feature still appropriate for randomizing participants in a controlled experiment though? Feedback, Voice of
Reputation Qualtrics isn't aimed at scientific studies, its more for business purposes. It does not guarantee that you will have equal numbers of completes because people could abandon the survey after being assigned but before completing, but it improves the odds. The randomizer logs each of these as a case, and therefore keeps track of which condition your test was sent through. Surveys, Onboarding & I wrote a bit of JS and put it in the addOnLoad part, for multiple blocks. Reputation Currently I have set up a randomizer with 3 embedded data elements which assigns one of three values (1,2 or 3) to the variable "CONDITION". Pulse Surveys, Online Surveys, Onboarding & I would also use a branching logic of if the question that is found in condition 3 is displayed, the participant THEN is shown 3a, 3b, 3c.
I'm still figuring this stuff out.). @juwort Put an embedded data field in your Randomizer and then change your branches so that they are triggered on the value of your embedded data field. I'm making a survey for my dissertation. New Hire I set a variable count is 0, but it doesn't work when running the survey. Community. Management, Qualtrics
Feedback, Customer Survey
Customer Yes, you should use it. Software, Employee Customer Experience Management This format works perfectly fine for the other randomization element I have earlier in the study. (CXM), Employee Management, Qualtrics Does anyone deal with the same problem? Reputation Software, Website & App (CXM), Employee I can't speak specifically to the Qualtrics algorithm, but typically it is done by first shuffling the set of items, then sorting them by count. But that doesn't explain why it does work for the first block. I set the number of elements presented to a participant to 1.
I finally had to use Javascript to increase variable count :D My problem was solved. Feedback, Voice of Software, 360 New Hire I will use it then. Surveys, Online Employee You also should make sure to select to reset the count of these randomizers before launching your survey (see more about this here in a previous comment of mine: https://community.qualtrics.com/XMcommunity/discussion/comment/44145#Comment_44145).
Customer
Customer You should click 'edit count' on the randomizer and make sure all conditions have a count of 0 before launching your study. Software, Employee You need to have four separate embedded data blocks under the randomizer that each assign a different value to CONDITION. Software, Website & App
Management, Qualtrics How do I go about resolving this? Employee
Qualtrics checks the number of times each element has been presented, shows the one which has been presented least, If more than one element has been presented the same number of times (lowest), it does a random draw to present one, It does this till all elements have been presented an equal number of times. Software, 360 Employee Setup in the survey flow looks fine. Reputation Reputation
Employee Surveys, Onboarding & Feedback, Voice of
Surveys, Online I would not use js it's just not necessary. For the counter, can I simply start by defining embedded data as "counter=0" and then in future embedded data flow updates say "counter=counter+1" and have that work? So far so good. Surveys, Online
Employee I have three blocks in my survey but only one will be presented to each participant.
(CXM), Employee
Engagement Surveys, Online Pulse I'm creating a survey for my master's thesis, part of which randomizes participants seeing one of two sets of images. Community. What do i need to change in my survey so that it'll be randomized. Software, Website & App Or do I have to use JavaScript (or something else piped fields, etc.) Feedback, Voice of The survey flow would look like this: Within the ConditionA/ConditionB blocks pipe, "This is Condition ${e://Field/condNum}". Customer Surveys, Onboarding & If it equals 5 you ask the See More?
Use a combination of loop and merge and display logic. (CXM), Employee
How would I alter my flow so that it first shows one instruction block randomly, followed by the appropriate tasks, and then the other instruciton block, which is then also followed by the right task's block? Thanks, @phbern, @TomG, @ahmedA for answering. Community. Software, Employee That means, each participant is seeing EVERY block. Software, Website & App Pulse Software, Employee If I throw a coin 100 times, it's gonna be about 50 times heads and 50 times tails. Software, Employee
Management, Qualtrics
Okay so it turns out that onLoad is working normally, but that Qualtrics -- when in a Randomizer block -- loads 2 questions: the previous one, in case people want to go back (I assume), and then the current one. But should I check the "evenly present elements" option? How can I exclude those and only take the presented block into account for the progress bar?
Community. Feedback, Customer Survey
Short answer: Use a embedded data field with as a counter. Surveys, Onboarding & Feedback, Customer Survey
Software, 360 Community. Customer Experience Management New Hire
It will reduce the variability in how many respondents are assigned to each condition. Engagement Software, Website & App
E.g. Feedback, Voice of Regarding discrepancy, did you reset the count before launching the survey? Surveys, Online Software, Website & App If what condition one is assigned to is randomized, i.e. Customer Experience Management Customer Engagement The survey will entail a participant being allocated to one of four vignettes randomly, and then filling out a set of questions.