Research bias and research fraud are concepts that can be used interchangeably because they are virtually identical?

Research bias is usually unintentional error, while research fraud involves deliberate misconduct such as falsifying or fabricating data. They are not identical and cannot be used interchangeably.

more info:nsda.portal.gov.bd/site/page/1595fdb5-339d-44f1-a7ea-b47476e1b1ee