The randomness R score (maximum correlation coefficient + SD, scaled to 100) is a measure of the consistency of the subject's response to the questions of the NPA personality test. The R score should be very low for a random response to the questions of the test
We computed the mean R scores for the subject categories where we had at least 40 subjects. All of the tests we done online and submitted to us, but we have no further information regarding the accuracy of the diagnoses. Also included are consecutive patients (N=100) from Dr. Hobgood's OBGYN practice:
Not surprisingly, the Borderline (English), NPD and ADD groups were low on the R-scale, while Autistic child (parents), Asperger/autism, and OCD were near the top. Both English and French females scored more coherently than the males (no comment there!). Not easily predictable are the relatively high scores for Fibromyalgia, Thyroid disorder, Borderline (French), as well as the lower scores for Migraine (both English and French).
In general, tests scoring NA or NA- in the "moderate" region of F-score trend toward lower R-score.
Also, here is a plot comparing "Borderline, English" with "Autistic child,parents", i.e., the low and high categories on the list:
« Back to index