Creating questionnaires for different languages is hard. It's expensive, time-consuming, and often inaccurate, which creates inequalities in research across cultures. Imagine trying to translate complex emotions or nuanced concepts perfectly! A new AI-powered tool aims to fix that by simplifying cross-cultural questionnaire adaptation. Researchers have developed a prototype that uses DeepL for translations and GPT-4 for evaluating the quality of those translations and offering improvement suggestions. Two studies were conducted where participants translated questionnaires from English to either German or Portuguese. The results were impressive! Participants using the AI tool achieved translation quality comparable to traditional methods. Plus, they found the AI’s evaluations helpful and often implemented the suggested changes. This breakthrough could lead to more inclusive research worldwide by lowering translation barriers and making cross-cultural studies more accessible. Although the initial results are very promising, further research is needed to test the tool’s effectiveness with more diverse questionnaires and language pairs. Future developments might even see AI assisting with questionnaire validation – potentially simulating participant responses to further streamline the process. This innovative tool opens exciting possibilities for making questionnaire-based research more equitable and efficient.