Fully-anonymized experimental data is available here
You can try the online experiment by clicking here
A fully reproducible version analysis pipeline in RMD format is available here. To run the RMD file, the data must first be imported from OSF storage and placed in the data folder.
To ensure preregistration time-locking (in other words, that preregistration preceded data collection), we employed randomization-based preregistration. We used the SHA256 cryptographic hash function to translate our preregistered protocol folder (including the pre-registration document) to a string of 256 bits. These bits were then combined with the unique identifiers of single subjects, and the resulting string was used as seed for initializing the Mersenne Twister pseudorandom number generator prior to determining all random aspects of the experiment. This way, experimental randomization was causally dependent on, and therefore could not have been determined prior to, the specific contents of our preregistration document (Mazor, Mazor & Mukamel, 2019).
The experiment was run in two batches due to a minor bug in the experiment code. Therefore, we provide preregistration time-locking summaries for both runs.
protocol sum: 23aef7ab769eab2870a780b6b5c821e27782d3019b6bca0589aebecde086159e
Preregistration document from the protocol folder
protocol sum: 13526ddfa7940be0e662cf488341d480b26fbf07b3a0acd5f0f096ea5ac73bae