Randomization

Libra — Mon, 26 Jan 2026 13:06:29 GMT

Hi! I have the batch script pasted below. I want half of the participants, for the second file, to be randomly assigned to "ldt_neutral" and another half of participants, for the second file, to be randomly assigned to "ldt_self."
I just launched the study on CloudResearch and set up groupId as random without placement. However, for the first 11 participants, 10 of them were assigned to the neutral condition while only 1 was assigned to the self condition. How could I get a balanced assignment for this manipulation?

**********CONDITIONS**************
groups = 1 or 2: IGSS condition: stereotype only
groups = 3 or 4: IGSS condition: negative implicit gender self-stereotyping

groups = 1 or 3: order of implicit IATs: implicit self-esteem first, implicit career identification second
groups = 2 or 4: order of implicit IATs: implicit career identification first, implicit self-esteem second

<batch>
/ groups = (1 of 4)
/ file = "vld12_part2_consent.iqjs"
/ file = "vld12_part2_ldt_neutral.iqjs"
/ file = "vld12_part2_firstIATintro.iqjs"
/ file = "vld12_part2_selfesteem_iat.iqjs"
/ file = "vld12_part2_secondIATintro.iqjs"
/ file = "vld12_part2_careeridentification_iat.iqjs"
/ file = "vld12_part2_explicitmeasures.iqjs"
/ file = "vld12_part2_demographics.iqjs"
</batch>

<batch>
/ groups = (2 of 4)
/ file = "vld12_part2_consent.iqjs"
/ file = "vld12_part2_ldt_neutral.iqjs"
/ file = "vld12_part2_firstIATintro.iqjs"
/ file = "vld12_part2_careeridentification_iat.iqjs"
/ file = "vld12_part2_secondIATintro.iqjs"
/ file = "vld12_part2_selfesteem_iat.iqjs"
/ file = "vld12_part2_explicitmeasures.iqjs"
/ file = "vld12_part2_demographics.iqjs"
</batch>

<batch>
/ groups = (3 of 4)
/ file = "vld12_part2_consent.iqjs"
/ file = "vld12_part2_ldt_self.iqjs"
/ file = "vld12_part2_firstIATintro.iqjs"
/ file = "vld12_part2_selfesteem_iat.iqjs"
/ file = "vld12_part2_secondIATintro.iqjs"
/ file = "vld12_part2_careeridentification_iat.iqjs"
/ file = "vld12_part2_explicitmeasures.iqjs"
/ file = "vld12_part2_demographics.iqjs"
</batch>

<batch>
/ groups = (4 of 4)
/ file = "vld12_part2_consent.iqjs"
/ file = "vld12_part2_ldt_self.iqjs"
/ file = "vld12_part2_firstIATintro.iqjs"
/ file = "vld12_part2_careeridentification_iat.iqjs"
/ file = "vld12_part2_secondIATintro.iqjs"
/ file = "vld12_part2_selfesteem_iat.iqjs"
/ file = "vld12_part2_explicitmeasures.iqjs"
/ file = "vld12_part2_demographics.iqjs"
</batch>

RE: Randomization

Dave — Mon, 26 Jan 2026 13:06:29 GMT

+x[quote]

[b]Libra - 1/25/2026[/b]
Hi! I have the batch script pasted below. I want half of the participants, for the second file, to be randomly assigned to "ldt_neutral" and another half of participants, for the second file, to be randomly assigned to "ldt_self."
I just launched the study on CloudResearch and set up groupId as random without placement. However, for the first 11 participants, 10 of them were assigned to the neutral condition while only 1 was assigned to the self condition. How could I get a balanced assignment for this manipulation?

**********CONDITIONS**************
groups = 1 or 2: IGSS condition: stereotype only
groups = 3 or 4: IGSS condition: negative implicit gender self-stereotyping

groups = 1 or 3: order of implicit IATs: implicit self-esteem first, implicit career identification second
groups = 2 or 4: order of implicit IATs: implicit career identification first, implicit self-esteem second

<batch>
/ groups = (1 of 4)
/ file = "vld12_part2_consent.iqjs"
/ file = "vld12_part2_ldt_neutral.iqjs"
/ file = "vld12_part2_firstIATintro.iqjs"
/ file = "vld12_part2_selfesteem_iat.iqjs"
/ file = "vld12_part2_secondIATintro.iqjs"
/ file = "vld12_part2_careeridentification_iat.iqjs"
/ file = "vld12_part2_explicitmeasures.iqjs"
/ file = "vld12_part2_demographics.iqjs"
</batch>

<batch>
/ groups = (2 of 4)
/ file = "vld12_part2_consent.iqjs"
/ file = "vld12_part2_ldt_neutral.iqjs"
/ file = "vld12_part2_firstIATintro.iqjs"
/ file = "vld12_part2_careeridentification_iat.iqjs"
/ file = "vld12_part2_secondIATintro.iqjs"
/ file = "vld12_part2_selfesteem_iat.iqjs"
/ file = "vld12_part2_explicitmeasures.iqjs"
/ file = "vld12_part2_demographics.iqjs"
</batch>

<batch>
/ groups = (3 of 4)
/ file = "vld12_part2_consent.iqjs"
/ file = "vld12_part2_ldt_self.iqjs"
/ file = "vld12_part2_firstIATintro.iqjs"
/ file = "vld12_part2_selfesteem_iat.iqjs"
/ file = "vld12_part2_secondIATintro.iqjs"
/ file = "vld12_part2_careeridentification_iat.iqjs"
/ file = "vld12_part2_explicitmeasures.iqjs"
/ file = "vld12_part2_demographics.iqjs"
</batch>

<batch>
/ groups = (4 of 4)
/ file = "vld12_part2_consent.iqjs"
/ file = "vld12_part2_ldt_self.iqjs"
/ file = "vld12_part2_firstIATintro.iqjs"
/ file = "vld12_part2_careeridentification_iat.iqjs"
/ file = "vld12_part2_secondIATintro.iqjs"
/ file = "vld12_part2_selfesteem_iat.iqjs"
/ file = "vld12_part2_explicitmeasures.iqjs"
/ file = "vld12_part2_demographics.iqjs"
</batch>
[/quote]

DId you indicate the number of groups as 4 in the experiment settings in addition to selecting group ID generation method (here: random without replacement)?

Millisecond Forums » Millisecond Forums » Inquisit 7 » Randomization

Randomization

RE: Randomization