> For the complete documentation index, see [llms.txt](https://brain.nathanarthur.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://brain.nathanarthur.com/quantified-self/experience-sampling-method.md). # Experience Sampling Method [ExperienceSampler](http://www.experiencesampler.com/) - An open source esm project composed of an iOS and Android app plus a self-hosted server app [Experience Sampling Method](https://en.wikipedia.org/wiki/Experience_sampling_method) #article - “The experience sampling method, also referred to as a daily diary method, or ecological momentary assessment (EMA), is an intensive longitudinal research methodology that involves asking participants to report on their thoughts, feelings, behaviors, and/or environment on multiple occasions over time.” [Expimetrics](https://app.expimetrics.com/) - “Experience sampling. Redefined. A smarter, simpler way to collect data.” [LifeData](https://www.lifedatacorp.com/) - Expensive. “Real-Time Patient Data. Real-Life Solutions.” [iHabit](http://emaresearch.org/ihabit/) #software - iOS app [Ilumivu](https://ilumivu.com/) - Expensive. “Are you an academic researcher or mental health counselor? Looking for an easy way to deliver mobile behavioral health interventions or run Ecological Momentary Assessment studies? The ilumivu Patient Engagement system is used by researchers and clinicians looking for an affordable system to monitor patient progress and provide just-in-time intervention.” [Movisens](https://www.movisens.com/en/) - “movisens provides ambulatory assessment and mobile monitoring products and services for science and research” [PACO](https://play.google.com/store/apps/details?id=com.pacoapp.paco) - "The Personal Analytics Companion" [PIEL Survey](https://pielsurvey.org/) #software - iOS app [SurveySignal](http://www.surveysignal.com/) - “SurveySignal is a powerful Survey Data Collection, Distribution & Management application. Conduct Survey Research (e.g. Experience Sampling) Using People's Own Smartphones!” --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://brain.nathanarthur.com/quantified-self/experience-sampling-method.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.