Looking for tasks and scales to use in creativity research? You might check out an Open Science Framework archive of creativity tasks and scales that are free for public use.
Some of the files are popular self-report scales in creativity research that measure concepts like everyday creativity, creative self-efficacy, self-rated creativity in different domains, creative achievements, and the like. Most of the self-report scales are in Word and PDF format; a few are in MediaLab Questionnaire format (.QUE) users. A couple have non-English translations.
Other files are for creativity tasks, such as divergent thinking, metaphor generation, and humor generation. Most are in MediaLab QUE format. Some guidelines for scoring and administering divergent thinking tasks are included, too.