The LOIS project is about exploring the online search behavior of young people with an extended URL-tracking system that generates "search stories". Project website: [loisresearch.org][1] Open Data materials are organized as follows: - **FNX** stands for "Fake News Experimentation". This was a system-testing experimentation with a focus on fake news identification and debunking. - **MDC** stands for "Main Data Collection". As the name says, this is the main data collection effort in the project, based around 4 information tasks. Available open data materials are: - **FNX_Surveys**: data collection instruments and data from the Fake News Experimentation - **MDC_DataMatrix**: SPSS data matrix (with metadata) and scales validation. - **MDC_RawSurveyData**: pre-task and post-task survey raw data. Include the reference websited that users mentioned in their task reponses, which are not in the data matrix. - **MDC_Responses**: textual responses to information tasks by users, with metadata and correct/incorrect coding scheme (assessment) - **MDC_SearchStories**: search stories CSV files, with metadata and aggregated stats. Two sets are provided: users (the main sample) and experts (benchmark sample) - **MDC_SearchStoryPlots_sample**: a sample of graphic and interactive search story visualizations - **MDC_Surveys**: the surveys instruments (in PDF) used in the Main Data Collection. [1]: https://loisresearch.org/