Intratester and intertester reliability of the cervical range of motion device.

The purpose of this study was to investigate the intratester and intertester reliability of the Cervical Range of Motion instrument (CROM) for measuring cervical flexion, extension, lateral flexion, and rotation. Twenty able-bodied subjects were tested by two testers on two different occasions. Pearson product-moment correlations for intratester reliability ranged from .