During the past few years I have started, with my coauthors, more projects than we have been able to finish. Some of the projects resulted in publications or are in the publication pipeline. However, some of the projects have not been touched for a few years because other projects took precedence for various reasons (grant deadlines, obligations to other coauthors, etc.). Given that it is unlikely that we will be able to finish these projects in a forthcoming year or more due to the same reasons, we want to offer the data sets to other interested researchers.
Short descriptions of the available projects are below. All of the projects should be publishable; projects that did not yield informative data are not included. If you are interested in adopting one of the projects, you should be able to do the remaining work and it is expected that you would be the first author of the paper coming out of the project. We will however still take an active part in the project by editing, commenting, helping with possible additional data collections, etc.
If you are interested in any of the projects send me a (non-committal) email at bahniks@seznam.cz and I can send you additional information.
Perceived morality of euthanasia
Description: A series of 11 experiments (N ~ 2000) examining effects of various factors (length of survival, experience of the physician, etc.) on perceived morality of euthanasia in hypothetical scenarios. It is possible to collect some additional data on a selected topic or combine the experiments in one manuscript. There should be sufficient data for at least one paper for one of the studied factors without additional data collection.
State: Data are collected and mostly analyzed. Preregistrations for all studies are available.
To do: Write-up Introduction and Discussion and edit Methods and Results for the available data, or supplement them with an additional data collection.
Coauthors: Štěpán Bahník, Adrian Wangerin, Marek Vranka
Choice blindness and product choice
Description: A study with 100 participants testing whether choice blindness manipulation influences selection of consumer products. The results are somewhat ambiguous and the statistical power of the study is not huge, so collecting additional data would strongly improve the manuscript (but we do not have resources for it).
State: Data are collected and analyzed. Methods and Results sections are written.
To do: Write-up of Introduction and Discussion. Additional data collection might be helpful.
Coauthors: Štěpán Bahník, Marek Vranka
Debiasing the base-rate neglect
Description: A study with ~400 participants examining whether providing reasons against the stereotypical association decreases the base-rate neglect.
State: Data are collected. Pre-registration is available.
To do: Analysis of the data. Write-up of the paper.
Coauthors: Štěpán Bahník, Jiří Hájek, Petr Houdek, Lucie Vrbová
No longer available
Wealth and perceived just punishment (Robin Hood effect)
Description: A set of 7 studies with more than 5000 participants examining the effect of wealth on perceived just compensation. The study shows that proportional punishment might lead to inconsistent judgments under certain circumstances.
State: Data are collected for 7 studies and they are mostly analyzed. Most of the Methods and Results sections are written. All the studies were pre-registered, so Introductions are also partly prepared.
To do: Write-up of Introduction and Discussion, finishing remaining Methods and Results sections, cleaning R code for posting on OSF.
Coauthors: Štěpán Bahník, Marek Vranka
Question wording and Knobe effect
Description: A 2×4 between-subject study with more than 1500 participants testing the effect of 4 different question wordings on the Knobe effect using the classical CEO scenario. Cognitive-ability data for participants are also available.
State: Data are collected for one study. It might be possible to write up the single study or do additional data collection.
To do: Data analysis, write-up of the paper, (preparation of materials if additional data collection is deemed necessary).
Coauthors: Štěpán Bahník, Marek Vranka
Causal analysis and solution generation
Description: A study with 368 participants testing whether identifying causes of a problem increases the number of solutions of the problem a person is able to generate. The main result is a null effect, but it is informative given the sample size, and there also some possibly interesting effects obtained for additional hypotheses.
State: Data are collected and analyzed. Methods and Results are mostly written.
To do: Write-up of Introduction and Discussion.
Coauthors: Štěpán Bahník, Jiří Hájek, Petr Houdek, Lucie Vrbová
Robustness of sunk cost and status quo biases
Description: A study with 404 participants testing possible debiasing of the sunk cost fallacy and status quo bias through advice, perspective taking, and visualization. None of the debiasing strategies worked, but the results should be informative given the sample size.
State: Data are collected and mostly analyzed. Methods section is written, pre-registration is available.
To do: Write-up of Introduction, Results, and Discussion.
Coauthors: Štěpán Bahník, Jiří Hájek, Petr Houdek, Lucie Vrbová