Preliminary assessment of obsessive-compulsive spectrum disorder scales for DSM-5

► New self-report scales for OC Spectrum Disorders were created by the DSM-5 workgroup. ► The scales demonstrated internal consistency in a non-clinical sample. ► The scales demonstrated convergent and discriminant validity in a non-clinical sample. ► Unidimensionality was confirmed for each scale. ► Further evaluation of the scales in clinical samples is warranted.