The most appropriate test for Jane, who is 22 years old, would be:
a. WAIS-III
The WAIS-III (Wechsler Adult Intelligence Scale - Third Edition) is designed for adults and is suitable for individuals aged 16 and older. The WISC-III (Wechsler Intelligence Scale for Children) is intended for children aged 6 to 16, and the WPPSI-R (Wechsler Preschool and Primary Scale of Intelligence) is meant for preschool-aged children. The DSM-IVR (Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Revised) is not an intelligence test but rather a classification system for mental disorders.