In cases where the validity of a test used for employee selection cannot be determined pursuant to Sections 335:15-13-4 and 335:15-13-5 (e.g., the number of subjects is less than that required for a technically adequate validation study, or an appropriate criterion measure cannot be developed), evidence from validity studies conducted in other organizations, such as that reported in test manuals and professional literature may be considered acceptable when:
Okla. Admin. Code § 335:15-13-7