Measuring distance in personal relationships: The Relational Distance Index

This article describes the development of an instrument that measures people's reported use of distancing tactics in personal relationships. Two versions of the Relational Distance Index (RDI) were developed, an 8‐itemversion and a 17‐item version. Four studies were conducted to examine the instrument's psychometric properties. The index exhibited a stable two‐factor structure (unfriendly and withdrawal), had acceptable internaland temporal reliability, and performed well on the tests of convergent and discriminant validity. The data suggested the RDI is suitable for use with both student and nonstudent samples.