A single survey item cannot capture a multidimensional construct.

Evidence

Furthermore, given that Islamophobia is a multidimensional construct, single-item measures will be considered non-validated measures in our review, as one item cannot capture the multiple factors within the construct of Islamophobia. — Ummul-Kiram Kathawalla, Fei Bi Chan, Quratulain Gulamhussein, Amy Riegelman, and Moin Syed, Conceptualization and Measurement of…, 61

Categorization

• DEFINE: Distinguishes ‘non-validated’ from ‘validated’ measures strictly by whether factor analysis was conducted.