Frequently Asked Questions (FAQ)

Can I be involved in more than one research team?

No, a researcher cannot be a part of multiple RTs.

I come from another discipline than economics. Can I participate?

Yes. Research Teams (RTs) may also comprise researchers from other disciplines. It is important that each team is associated with one experimental economics lab where they will collect the data.

I would like to participate, but I am not sure I can complete all parts of the study at the required times. Should I sign up?

To ensure that the data is of the highest quality, please only sign up if you are sure that you can complete all elements of the study in time.

What do I need to submit for my participation in the study to be complete?

In chronological order, we will ask RTs to submit the following throughout the course of the project:

design proposal
rating of other designs
collected data
responses to the lab panel survey
comments on the draft of the paper

Can my participation remain anonymous?

In general, all members of RTs will become co-authors of the project and, as such, not be anonymous. Moreover, RTs will be linked to their design proposals in the final publication.

What are the terms of co-authorship?

The Project Team will prepare a draft based on your proposed analyses and survey answers. Co-authorship will be offered to all members of RTs who completed all elements of the study (design proposal, rating, collected data, and response to the lab panel survey) within the timeline outlined.

RTs will be given 30 days to review the manuscript and make any comments.

RTs who do not wish to become co-authors or who do not want to be linked to design proposals may withdraw from the collaboration before the paper is submitted for publication. If they withdraw, they will not be listed as co-authors. Their anonymized design proposal, rating, and collected data will remain part of the paper.

I only want to propose and evaluate a design, but not collect any data. Is that possible?

No. Participation in the study requires a commitment to data collection. All participating labs must declare to collect the data upon joining the project, irrespective of which design gets chosen for implementation.

Can I suggest other methods than regression analysis to test the hypothesis?

No. All primary and secondary hypothesis tests must be evaluated and analyzed using regression models as specified in the design requirements for experiments.

Can I propose an experimental design that pays a fixed fee and no decision-based incentives?

Yes, as long as your payment scheme adheres to the design requirement that participants should earn approximately €15 per hour, including a €6 show-up fee.

200 or 300 observations, how many exactly will my lab need to collect?

The exact number of observations to be calculated depends on the design selected for implementation. The exact number will be specified in PAP 2. Please make sure to suggest how many observations that your design requires when you are submitting your design.

What if my lab does not manage to recruit the needed number of 200-300 participants in time?

Labs should only nominate an RT to participate in the study if they are confident that they can recruit up to 300 participants in ca. one month.

What if multiple designs receive the same highest average ranking (i.e., ties)?

In case of ties, the selected design will be determined by a random draw among those designs that received the same highest ranking.

What if I expect to change affiliations while participating in the project?

That is not a problem. Please keep the Project Team informed about your change in affiliations.

What if I lose access to the experimental laboratory where I planned to collect the data?

It is important that RTs ensure that they will retain access to the laboratory in which they plan to collect the data for the expected duration of the project.

What if the selected design does not get IRB approval?

If, during the IRB application, it becomes clear that, for getting approval, significant changes to the selected experimental design are needed, the next highest-ranked design proposal will be chosen for implementation.

Who owns the merged data? Is there an embargo on the data?

Initially, after data collection, the data from each laboratory will be accessible only to the RT who collected it and the Project Team. RTs can use the data from their lab, but are prohibited from releasing, publicizing, or discussing their findings until the manuscript of ManyLabsDACH is published in a journal. After this period, the embargo will expire, and all data will be released in the project's OSF repository under a CC-BY license and will be freely available for public use.

May RTs do other research studies with the collected, merged data?

Yes, after all data will be released in the project's OSF repository, it is freely available for public use as long as attribution to the creators is given under the CC-BY license.

I can only afford to participate if I get reimbursement for the participant costs. May I withdraw if my design is not selected or if there is no chance of getting reimbursement?

Should any lab require funding support, they should contact the Project Team as soon as possible. Financial support can be provided to contributing teams only if the labs can issue an invoice. Unfortunately, the processes of transferring money for participant payments in the experiment are extremely slow and administratively complicated for both senders and recipients.

Under what conditions may I withdraw from the study? What are the consequences?

RTs may withdraw from the study at any time. If they withdraw, they will not be listed as co-authors. Their anonymized design proposal, rating, and collected data will remain part of the paper.

Can I participate on my own?

RTs may consist of one to three members.

Can I discuss my experimental design proposal with other RTs during the study?

You may freely communicate with other RTs throughout the study.

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