Millisecond Forums

## HOW TO RUN RANDOMLY BLOCKS IN AN EXPERIMENT?

https://www.millisecond.com/forums/Topic17061.aspx

 By dilemma - 9/6/2015 Hi there  so below is my script...I want the experiment to run all the blocks but to run them randomly. I tried the “random” and “noreplace” function but it does not work as it does only choose randomly one of the two blocks, while I want it to run all the blocks but in a random order the only time it works is in the last option that I reported (with nothing in front) but the problem it will run the blocks in the order that I have written them which is not what I want as it needs to be random! Please advice for help!/ preinstructions = (intro1)/ blocks = [ 1=noreplace(1a,1b); 2= 6; 3=noreplace(2a_1, 2a_2, 2a_3, 2a_4, 2a_5, 2a_6, 2a_7, 2a_8, 2a_9, 2a_10, 2a_11, 2a_12, 5a_1, 5a_2, 5a_3, 5a_4)]/ postinstructions = (end)/ subjects = (1 of 2)/ preinstructions = (intro1)/ blocks = [ 1=random(1a,1b); 2= 6; 3=random(2a_1, 2a_2, 2a_3, 2a_4, 2a_5, 2a_6, 2a_7, 2a_8, 2a_9, 2a_10, 2a_11, 2a_12, 5a_1, 5a_2, 5a_3, 5a_4)]/ postinstructions = (end)/ subjects = (1 of 2)/ preinstructions = (intro1)/ blocks = [ 1=1a,1b; 2= 6; 3=2a_1, 2a_2, 2a_3, 2a_4, 2a_5, 2a_6, 2a_7, 2a_8, 2a_9, 2a_10, 2a_11, 2a_12, 5a_1, 5a_2, 5a_3, 5a_4]/ postinstructions = (end)/ subjects = (1 of 2) By Dave - 9/7/2015 It only runs a single block because that's what you specified. Instead of/ blocks = [1=noreplace(a,b,c)]...you ought to specify/ blocks = [1-3=noreplace(a,b,c)]...to run the 3 blocks a, b and c in random order. By Charlene_Wu - 10/30/2020 +x Dave - 9/7/2015It only runs a single block because that's what you specified. Instead of/ blocks = [1=noreplace(a,b,c)]...you ought to specify/ blocks = [1-3=noreplace(a,b,c)]...to run the 3 blocks a, b and c in random order.Hi Dave,I have a similar issue. In the of the file attached, you can see that I have 2 different EPTs, each with its own block. The first EPT has its orientation block (3 = orientationCvH), 2 rounds of the test block (4-5 = testCvH), and an end block (6 = endCvH). The other EPT is similar (7 = orientationVvS; 8-9 = testVvS;10 = endVvS). The EPTs need to remain in the same order of 1 orientation block + 2 test blocks + 1 end block.I now wish to randomize these two EPTs such that some participants get blocks 3-6 first and others 3-10 first. I would like the rest of the script to stay the same. How would I approach this? Thank you in advance! By Dave - 10/30/2020 +x Charlene_Wu - 10/30/2020+x Dave - 9/7/2015It only runs a single block because that's what you specified. Instead of/ blocks = [1=noreplace(a,b,c)]...you ought to specify/ blocks = [1-3=noreplace(a,b,c)]...to run the 3 blocks a, b and c in random order.Hi Dave,I have a similar issue. In the of the file attached, you can see that I have 2 different EPTs, each with its own block. The first EPT has its orientation block (3 = orientationCvH), 2 rounds of the test block (4-5 = testCvH), and an end block (6 = endCvH). The other EPT is similar (7 = orientationVvS; 8-9 = testVvS;10 = endVvS). The EPTs need to remain in the same order of 1 orientation block + 2 test blocks + 1 end block.I now wish to randomize these two EPTs such that some participants get blocks 3-6 first and others 3-10 first. I would like the rest of the script to stay the same. How would I approach this? Thank you in advance!// CvH first/ blocks = [1 = eligibility;2 = Demo;3 = orientationCvH;4-5 = testCvH; 6 = endCvH;7 = orientationVvS;8-9 = testVvS;10 = endVvS;11 = ExplicitRate;12 = AMPpractice;13-15 = AMP;16 = FeelThermConVio;17 = FeelThermThreeGroup;18 = thankyou;19 = ineligible] / subjects = (1 of 2)/ groupassignment = groupnumber// VvS first/ blocks = [1 = eligibility;2 = Demo;3 = orientationVvS;4-5 = testVvS;6 = endVvS;7 = orientationCvH;8-9 = testCvH; 10 = endCvH;11 = ExplicitRate;12 = AMPpractice;13-15 = AMP;16 = FeelThermConVio;17 = FeelThermThreeGroup;18 = thankyou;19 = ineligible] / subjects = (2 of 2)/ groupassignment = groupnumber By Charlene_Wu - 10/30/2020 +x Dave - 10/30/2020+x Charlene_Wu - 10/30/2020+x Dave - 9/7/2015It only runs a single block because that's what you specified. Instead of/ blocks = [1=noreplace(a,b,c)]...you ought to specify/ blocks = [1-3=noreplace(a,b,c)]...to run the 3 blocks a, b and c in random order.Hi Dave,I have a similar issue. In the of the file attached, you can see that I have 2 different EPTs, each with its own block. The first EPT has its orientation block (3 = orientationCvH), 2 rounds of the test block (4-5 = testCvH), and an end block (6 = endCvH). The other EPT is similar (7 = orientationVvS; 8-9 = testVvS;10 = endVvS). The EPTs need to remain in the same order of 1 orientation block + 2 test blocks + 1 end block.I now wish to randomize these two EPTs such that some participants get blocks 3-6 first and others 3-10 first. I would like the rest of the script to stay the same. How would I approach this? Thank you in advance!// CvH first/ blocks = [1 = eligibility;2 = Demo;3 = orientationCvH;4-5 = testCvH; 6 = endCvH;7 = orientationVvS;8-9 = testVvS;10 = endVvS;11 = ExplicitRate;12 = AMPpractice;13-15 = AMP;16 = FeelThermConVio;17 = FeelThermThreeGroup;18 = thankyou;19 = ineligible] / subjects = (1 of 2)/ groupassignment = groupnumber// VvS first/ blocks = [1 = eligibility;2 = Demo;3 = orientationVvS;4-5 = testVvS;6 = endVvS;7 = orientationCvH;8-9 = testCvH; 10 = endCvH;11 = ExplicitRate;12 = AMPpractice;13-15 = AMP;16 = FeelThermConVio;17 = FeelThermThreeGroup;18 = thankyou;19 = ineligible] / subjects = (2 of 2)/ groupassignment = groupnumberDo I need to do anything to assign participants to different groups, or is it kind of automatic that they would just be randomly assigned to group 1 or ? By Charlene_Wu - 10/30/2020 +x Charlene_Wu - 10/30/2020+x Dave - 10/30/2020+x Charlene_Wu - 10/30/2020+x Dave - 9/7/2015It only runs a single block because that's what you specified. Instead of/ blocks = [1=noreplace(a,b,c)]...you ought to specify/ blocks = [1-3=noreplace(a,b,c)]...to run the 3 blocks a, b and c in random order.Hi Dave,I have a similar issue. In the of the file attached, you can see that I have 2 different EPTs, each with its own block. The first EPT has its orientation block (3 = orientationCvH), 2 rounds of the test block (4-5 = testCvH), and an end block (6 = endCvH). The other EPT is similar (7 = orientationVvS; 8-9 = testVvS;10 = endVvS). The EPTs need to remain in the same order of 1 orientation block + 2 test blocks + 1 end block.I now wish to randomize these two EPTs such that some participants get blocks 3-6 first and others 3-10 first. I would like the rest of the script to stay the same. How would I approach this? Thank you in advance!// CvH first/ blocks = [1 = eligibility;2 = Demo;3 = orientationCvH;4-5 = testCvH; 6 = endCvH;7 = orientationVvS;8-9 = testVvS;10 = endVvS;11 = ExplicitRate;12 = AMPpractice;13-15 = AMP;16 = FeelThermConVio;17 = FeelThermThreeGroup;18 = thankyou;19 = ineligible] / subjects = (1 of 2)/ groupassignment = groupnumber// VvS first/ blocks = [1 = eligibility;2 = Demo;3 = orientationVvS;4-5 = testVvS;6 = endVvS;7 = orientationCvH;8-9 = testCvH; 10 = endCvH;11 = ExplicitRate;12 = AMPpractice;13-15 = AMP;16 = FeelThermConVio;17 = FeelThermThreeGroup;18 = thankyou;19 = ineligible] / subjects = (2 of 2)/ groupassignment = groupnumberDo I need to do anything to assign participants to different groups, or is it kind of automatic that they would just be randomly assigned to group 1 or ? Sorry, group 1 or 2? By Dave - 10/30/2020 +x Charlene_Wu - 10/30/2020+x Charlene_Wu - 10/30/2020+x Dave - 10/30/2020+x Charlene_Wu - 10/30/2020+x Dave - 9/7/2015It only runs a single block because that's what you specified. Instead of/ blocks = [1=noreplace(a,b,c)]...you ought to specify/ blocks = [1-3=noreplace(a,b,c)]...to run the 3 blocks a, b and c in random order.Hi Dave,I have a similar issue. In the of the file attached, you can see that I have 2 different EPTs, each with its own block. The first EPT has its orientation block (3 = orientationCvH), 2 rounds of the test block (4-5 = testCvH), and an end block (6 = endCvH). The other EPT is similar (7 = orientationVvS; 8-9 = testVvS;10 = endVvS). The EPTs need to remain in the same order of 1 orientation block + 2 test blocks + 1 end block.I now wish to randomize these two EPTs such that some participants get blocks 3-6 first and others 3-10 first. I would like the rest of the script to stay the same. How would I approach this? Thank you in advance!// CvH first/ blocks = [1 = eligibility;2 = Demo;3 = orientationCvH;4-5 = testCvH; 6 = endCvH;7 = orientationVvS;8-9 = testVvS;10 = endVvS;11 = ExplicitRate;12 = AMPpractice;13-15 = AMP;16 = FeelThermConVio;17 = FeelThermThreeGroup;18 = thankyou;19 = ineligible] / subjects = (1 of 2)/ groupassignment = groupnumber// VvS first/ blocks = [1 = eligibility;2 = Demo;3 = orientationVvS;4-5 = testVvS;6 = endVvS;7 = orientationCvH;8-9 = testCvH; 10 = endCvH;11 = ExplicitRate;12 = AMPpractice;13-15 = AMP;16 = FeelThermConVio;17 = FeelThermThreeGroup;18 = thankyou;19 = ineligible] / subjects = (2 of 2)/ groupassignment = groupnumberDo I need to do anything to assign participants to different groups, or is it kind of automatic that they would just be randomly assigned to group 1 or ? Sorry, group 1 or 2?If you're using Inquisit Lab, it prompts you for the group number when you run the script.On the web, select either random or sequential group number generation in the web experiment's settings and indicate the number of groups as 2.