The Pickle Fanaticism Scale was created for the purpose of teaching measurement theory and validity concepts to university students. The scale includes items that intentionally violate item writing guidelines. Datasets of responses to this scale, collected online using Twitter, are available on this page. Teaching measurement concepts using real item responses allows students to experience how item wording can impact the psychometric properties of a scale. Available on this page are: 1. A [dataset][1] of responses to the full 33 candidate items of the Pickle Fanaticism Scale, along with demographic variables, and accompanying [codebook][2]. 2. A [dataset][3] including responses to a subset of the best performing items from the Pickle Fanaticism Scale and conceptually related variables (Power of Food, preference for salty foods), and accompanying [codebook][4]. 3. Assignments using these data on the following topics: a. [Item review and response processes][5] b. [Item analysis][6] c. [Exploratory Factor Analysis][7] d. [Reliability][8] e. [Relations to other variables][9] f. A [final report][10] that synthesizes previous sources of evidence, and adds consideration of consequences of testing 4. Our [tutorial manuscript][11] describing the use of these data (also available on the [journal's website][12].) The dataset is free to use, and those teaching measurement topics may use our activities or design their own. [1]: https://osf.io/gxa9j [2]: https://osf.io/k6cjv [3]: https://osf.io/tu923 [4]: https://osf.io/ekv7u [5]: https://osf.io/p3rz6 [6]: https://osf.io/dpxsb [7]: https://osf.io/kbrjp [8]: https://osf.io/8y6te [9]: https://osf.io/jqn5v [10]: https://osf.io/ezrt7 [11]: https://osf.io/vdz9p [12]: https://doi.org/10.20982/tqmp.20.3.v019