The Worker Role Interview is a semistructured interview designed to be used as the psychosocial–environmental component of the initial rehabilitation assessment for the injured worker. Interrater reliability of the Worker Role Interview was computed for three raters for a sample of 30 adult subjects receiving rehabilitation due to an upper extremity injury. Reliability was assessed with the intraclass correlation approach. The coefficients estimating interrater reliability for six content areas ranged from .46 to .92 with a total value of .81. Three out of six content areas received ratings well below the accepted standard of .80, suggesting further need for instrument refinement in select areas. Test-retest reliability was computed for one rater for a sample of 20 subjects. The intraclass coefficient values ranged from .86 to .94 with a total value of .95 indicating high test-retest reliability.