Experimental Data on Group Deliberation for Fukushima Soil Disposal

128 Japanese university students participated in a group decision experiment. The study, authored by Yume Souma and uploaded in 2026, examines how competitive versus cooperative controversy contexts influence opinion change and decision evaluation regarding the final disposal of soil removed after the Fukushima nuclear accident.

Use Cases

• Analyze the relationship between experimental condition (competitive/cooperative) and participants' post-discussion decision evaluation scores.
• Investigate correlation between pre-discussion opinions, group decision outcomes, and individual outcome ratings, particularly in the competitive condition.
• Model opinion change as a function of discussion context and initial stance using pre- and post-discussion survey data.

Strengths

• Data from a controlled experiment with 128 participants organized into 32 groups.
• Explicit manipulation of two independent variables (competitive and cooperative controversy contexts).

Limitations

• Small sample size of 128 participants limits statistical power and generalizability.
• Population is geographically biased, consisting solely of Japanese university students.
• The dataset is very small at 5.5 KB, indicating limited scope and likely few variables.

Provenance

Source

Yume Souma via figshare.

Collection Method

Data collected from a controlled group decision-making experiment.

Time Range

Experimental data collection period not specified.

Freshness

Last updated in April 2026.

Geography

Japan; specific to the issue of soil disposal from Fukushima Prefecture.