Linking multiple batches for multistage randomization

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Linking multiple batches for multistage randomization

Linking multiple batches for multistage randomization

Author	Message
Erica H	Erica H posted 11 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 5, Visits: 15	Hello, I have two IATs with two alternate versions within each type that I'd like to present to participants. I would like participants to be randomly assigned to complete one of the IAT types, but randomize which version of the test appears first. I created two levels of batches; one that randomizes the order of versions, and one that randomizes the IAT type (path leading to the random order batch file). Individually (the sub-level random order) works, but the master file seems to be getting "stuck"- not loading. Any suggestions? IAT1 (version A, version B) IAT2 (version A, version B)
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Dave	Dave posted 11 Years Ago ANSWER Post Details Share Post
Group: Administrators Posts: 13K, Visits: 108K	Not sure how this can be answered without you providing actual code. Are you saying you've set up <batch> elements that run files containing further <batch> elements? If so, that's not advisable. Instead you should simply do <batch> / file = "IAT_1_A.iqx" / file = "IAT_1_B.iqx" / subjects = (1 of 4) / groupassignment = random </batch> <batch> / file = "IAT_1_B.iqx" / file = "IAT_1_A.iqx" / subjects = (2 of 4) / groupassignment = random </batch> <batch> / file = "IAT_2_A.iqx" / file = "IAT_2_B.iqx" / subjects = (4 of 4) / groupassignment = random </batch> <batch> / file = "IAT_2_B.iqx" / file = "IAT_2_A.iqx" / subjects = (4 of 4) / groupassignment = random </batch> Edited 11 Years Ago by Dave
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