Diagnosing MPD with two new Rorschach signs: are the signs valid or are the MPDS atypical?

The validity of newly developed "Splitting" and "Dissociative" signs on the Rorschach for diagnosing multiple personality disorder (MPD) was questioned. It was pointed out that the mean number of Rorschach responses for what were ostensibly patients with MPD was so high as to render the sample atypical. It was suggested that perhaps the Splitting and Dissociative signs were diagnostic of either dissociation in general or MPDs who have experienced decompensation, leading to hospitalization.