InstantForum 2017-1 FinalMillisecond Forumshttps://forums.millisecond.com/Millisecond ForumsThu, 16 Apr 2026 22:20:46 GMT20https://forums.millisecond.com/Topic29036.aspxDear all,<br/><br/>Currently I am working on an online study in which randomization needs to take place at two different time points in the same experiment (two times random group assignment (first: one of three groups, second: one of two groups) in two different scripts). I am aware that there is the &lt;expt&gt; and &lt;batch&gt; function that can be used. Which one would you recommend? And how comprehensible are the group assignments given that they take place at two points?<br/><br/>Thank you and best regards,<br/>Jessica<br/>Mon, 18 May 2020 10:46:14 GMTJessica_FAUhttps://forums.millisecond.com/Topic29040.aspx<blockquote data-id="29036" class="if-quote-wrapper" unselectable="on" data-guid="1589798738090" id="if_insertedNode_1589798736945" contenteditable="false"><a class="quote-para" unselectable="on" style="display: none;" href="#" data-id="29036" title="Move Cursor Below" contenteditable="false"><span unselectable="on">+</span></a><a class="quote-delete" unselectable="on" style="display: none;" href="#" data-id="29036" title="Delete Quote" contenteditable="false"><span unselectable="on">x</span></a><span unselectable="on" class="quote-markup">[quote]</span><div unselectable="on" class="if-quote-header" contenteditable="false"><div unselectable="on" class="if-quote-toggle-wrapper"><a class="if-quote-toggle quote-link" href="#" data-id="29036" title=" ">&nbsp;</a></div><span unselectable="on" class="quote-markup">[b]</span>Jessica_FAU - 5/17/2020<span unselectable="on" class="quote-markup">[/b]</span></div><div class="if-quote-message if-quote-message-29036"><div class="if-quote-message-margin" contenteditable="true">Dear all,<br/><br/>Currently I am working on an online study in which randomization needs to take place at two different time points in the same experiment (two times random group assignment (first: one of three groups, second: one of two groups) in two different scripts). I am aware that there is the &lt;expt&gt; and &lt;batch&gt; function that can be used. Which one would you recommend? And how comprehensible are the group assignments given that they take place at two points?<br/><br/>Thank you and best regards,<br/>Jessica<br/><a class="if-quote-goto quote-link" href="#" data-id="29036"><span class="goto"></span></a></div></div><span unselectable="on" class="quote-markup">[/quote]</span></blockquote><br/>How condition assignment works is described here:<br/><a href="https://www.millisecond.com/forums/Topic13856.aspx">https://www.millisecond.com/forums/Topic13856.aspx</a>Mon, 18 May 2020 10:46:14 GMTDave