Interrater Reliability of the Road Law and Road Craft Test as Part of the OT-DORA Battery for Off-Road Driver Assessment

Background: The Occupational Therapy Driver Off Road Assessment (OT-DORA) Battery is in development as a comprehensive off-road evaluation of fitness to drive. Although several psychometric properties of the Road Law and Road Craft Test (RLRCT) have been previously studied, interrater reliability must also be established to include this test in the battery. Aim: The aim of the study was to determine the interrater reliability of the RLRCT. Method: Three occupational therapy driver assessors independently scored 20 client responses on the 14-item RLRCT. Results: The interrater reliability for all items, except item 6, was found to be between 0.57 and 1.00. The scoring instructions for item 6 were revised and the interrater reliability rose from 0.42 to 0.77. Conclusion: The RLRCT has been found to be reliable when administered by different raters and is thus suitable for inclusion in the OT-DORA Battery. Ongoing research to confirm the psychometric properties of the RLRCT is required.

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