> For the complete documentation index, see [llms.txt](https://yinqi-h.gitbook.io/ml-models/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://yinqi-h.gitbook.io/ml-models/models.md).

# Models

Two models needed in psychology:

1. Explanation -> hypothesis driven (need to explain the cognitive processes)
2. Prediction -> data driven (model accuracy matters)