Supplementary data for the paper: 
De Winter, J. C. F., Dodou, D., & Eisma, Y. B. (2024). Personality and Acceptance as Predictors of ChatGPT use. Discover Psychology. https://doi.org/10.1007/s44202-024-00161-2

* read_and_process.m					MATLAB script that reads the questionnaire data from Qualtrics and produces the figures and tables of the paper.		

* ChatGPT_September+11,+2023_19.47.xlsx			Excel file with the questionnaire data from Qualtrics for Questionnaire 1. Read by read_and_process.m.
* Demographic_data_Prolific_September_2023.xlsx		Excel file with the demographic data from Prolific for Questionnaire 1. Read by read_and_process.m.

* ChatGPT_March+21,+2024_20.59.xlsx			Excel file with the questionnaire data from Qualtrics for Questionnaire 2. Read by read_and_process.m.
* Demographic_data_Prolific_March_2024.xlsx		Excel file with the demographic data from Prolific for Questionnaire 2. Read by read_and_process.m.

* GPT_analysis.m					MATLAB script that sends the respondents' free-text comments to the API of ChatGPT to create a summary.

* nanzscore.m						MATLAB function for z-transforming a data matrix that contains NaNs. Read by read_and_process.m.

* Questionnaire 1.pdf					PDF of Questionnaire 1 (September 2023).
* Questionnaire 2.pdf					PDF of Questionnaire 2 (March 2024).

Note. To preserve the respondents' anonymity, Participant IDs (Prolific PIDs) have been replaced with sequential numbers. Moreover, IP addresses, Response IDs, and Submission IDs have been removed from the corresponding columns in the Excel files.