Volunteer bias (also called self-selection bias) arises in any research study in which participants choose if they want to be part of the sample. It is a common type of research bias and leads to a sample that is not representative of the population as a whole.
Our team helps students graduate by offering:
Scribbr specializes in editing study-related documents. We proofread:
The Scribbr Plagiarism Checker is powered by elements of Turnitin’s Similarity Checker, namely the plagiarism detection software and the Internet Archive and Premium Scholarly Publications content databases.
The Scribbr Citation Generator is developed using the open-source Citation Style Language (CSL) project and Frank Bennett’s citeproc-js. It’s the same technology used by dozens of other popular citation tools, including Mendeley and Zotero.
You can find all the citation styles and locales used in the Scribbr Citation Generator in our publicly accessible repository on Github.
