A survey instrument refers to the tool or method used to collect information or data from people. It can be a questionnaire, interview guide, or any other tool that helps gather responses and feedback from individuals. Full definition
To measure the ideological position of the different groups, survey instruments usually carry a question asking respondents on where they see themselves in a left to right scale. (esrcpartymembersproject.org)
We gave students, parents, and teachers an initial survey instrument to measure student motivation and self - efficacy tied to reading and writing. (solutiontree.com)
This recommendation pushes in a very different direction from the current embrace of survey instruments such as the Grit scale that are intended to capture individual differences in abstract student dispositions. (educationnext.org)