![]() ![]() You can then either use this variable (it will state the block each participant was assigned to) or recode it into a numerical variable, depending on the needs of your analyses and statistical software. To get a variable that specifies what condition each participant was assigned to, you need to select “export viewing order data for randomized surveys” when you download the data (export function on the Data and Analyses tab). Or you can set up a series of if-then statements, but that’s a bit more work. You can set up a control block, with an innocuous message (matched in experimental blocks), that will be part of the random assignment below our randomizing block. If you want to add a control condition, there are several ways to do it. There are plenty of reasons to do this, but I won’t go into it now. If you put an “End of Survey” block below a randomizer or any other sub-block, participants will not be presented with any further blocks (higher up in tree, but below the End block). ![]() In real life, I have a customized end of survey message, but above it is just the Qualtrics standard.Or you can just add an end of survey block, as I have done below: If you have any other blocks (e.g., questionnaires for covariates), you can put them below the Anxiety block, and everyone will see them. ![]() You will get single variables for the Anxiety Scale (e.g., everyone will have A1, A2, A3, A4… completed in the same columns) When you download the data, you will get separates variable for the people assigned to News and TV (e.g., the variable that indicates the stimulus has been presented, and anything else, such as a timing variable that is on the separate blocks). They will then all be presented with the Anxiety block (and complete the Anxiety Scale). As it is set up, participants will view (and complete) block one (consent and demographics), and then be randomly assigned to one of the two conditions.The larger the sample, the less you need to worry about this). You can also select “Evenly present elements,” which is minor violation of random assignment, but will prevent randomicity from happening in a disagreeable fashion (e.g., getting 75 people in group 1 and 25 in group 2. You will need to set that to “1” to present only one clip.Select the quantity of blocks you wish each participant to view. If you leave it like this, all participants will see both clips:.Below, you can see that I have dragged both stimuli blocks below the randomizer. ![]() You will need to click and drag your conditions to where it says “Add new element here)
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