This dataset contains data used in the following study:
Feng, S., Melia, N., Abraham, A., Chan, Y. N., Lee, L. L., Pei, J. Y., Yap, H. S., Hung, D., Suckling, J., Teo, C. L., Robbins, T., Sahakian, B., Kourtzi, Z., Leong, V., Chen, A., Hendriks, H., Christopoulos, G., & the CLIC Phase 1 Consortium. (2026). QualGames: A Qualtrics implementation and a database of behavioral game theory tasks.
Behavior Research Methods, 58(8), 219.
https://doi.org/10.3758/s13428-026-03081-2 Free full-text access (Springer SharedIt):
https://rdcu.be/fslcj As part of the study, we share responses from
314 participants in Singapore in 12 online decision-making tasks, and
94 participants in the United States in 10 decision-making tasks.
Demographics of the Singapore participants: age: range [18.04, 29.98], mean 22.56, SD 2.16;
gender: 52.23% female;
ethnicity: 87.90% Chinese, 4.46% Malay, 5.10% Indian, and 2.55% other.
Individual-level demographics are not included to protect participants’ privacy.
The tasks administered to the Singapore participants are listed below: Risk preference task (positive domain;
PRp),
Risk preference task (negative domain;
RPn),
Risk preference task (mixed domain;
RPm),
Ambiguity aversion task (
AA),
Social value orientation task (
SVO),
Risky dictator game (
RD),
Trust game (with no choice history;
TGnh),
Trust game (with choice history;
TG),
Trust game (as Player B;
TGb),
Prisoner’s dilemma game (
PD),
Stag hunt game (
SH), and
Battle of the sexes game (
BS).
Demographics of the U.S. participants: age: range [21, 40], mean 32.48, SD 5.51;
gender: 35.11% female;
ethnicity: 58.51% White/Caucasian, 13.83% Hispanic, 14.89% Black/African American, 11.70% Asian/Pacific islander, and 1.06% American Indian/Alasca native.
The tasks administered to the U.S. participants are listed below: Risk preference task (positive domain;
PRp),
Risk preference task (negative domain;
RPn),
Social value orientation task (
SVO),
Risky dictator game (
RD),
Trust game (with no choice history;
TGnh),
Trust game (with choice history;
TG),
Prisoner’s dilemma game (
PD),
Ultimatum game (as proposer;
UGp),
Ultimatum game (as responder;
UGr), and
Temporal discounting task (
TD).
These tasks were implemented on the Qualtrics platform. The details such as each screen that a participant may see when performing these tasks and the task code can be found in this GitHub repository:
https://github.com/ntu-cam-clic/Social_Decision_Making_Tasks.git
