Jayne has been tested to have an iq of 70. this suggests that she has a level of intellectual disabilityprofound moderate

The answer is a mild level of intellectual disability. The mild level of intellectual impairment has been determined by a tested IQ level of 50 to 55 to approximately 70.  People categorized under this level are slower than the normal person in all developmental areas, they are still able to do daily life activities, there are no visible/physical characteristics, able to do reading and math skills up to grade 3 until 6, they can socialize and can function daily.