{"tema_id":"63","string":"Sampling error","created":"2024-04-17 19:34:27","code":"","modified":"0000-00-00 00:00:00","notes":[{"@type":"Scope note","@lang":"en-EN","@value":"SYMSITES k-SDSS "},{"@type":"Definition note","@lang":"en-EN","@value":"The variance among observational units within experimental units; there can be multiple levels of sampling error. "}]}