A free online dictionary for students, teachers, & the curious to find meanings, examples, pronunciations, word origins, & quotations.
Google Scholar is a freely accessible search engine that indexes the full text or metadata of scholarly literature across various formats such as books, articles, theses, and patents.
Discover jMetrik, the free and open-source psychometric software that runs on Windows, Mac OSX, and Linux platforms. Experience intuitive interfaces, advanced psychometric methods, and an embedded database for efficient data management in your research.
pandas is a fast, powerful, flexible, and easy-to-use open-source data analysis and manipulation tool built on top of the Python programming language. It provides data structures and operations for manipulating numerical tables and time series.