Question

a(n) ______ is a list of questions developed by a researcher that can be administered in paper form.
○ survey
○ naturalistic observation
○ case study
○ archive

Explanation:

A survey is a research tool consisting of a set of questions, often distributed in paper (or digital) form to collect data. Naturalistic observation involves watching subjects in their natural setting, a case study focuses on in-depth analysis of a single subject/group, and an archive refers to stored records—none of these match the definition provided.

Answer:

survey