Since perceptual, motor, and conceptual tests for brain-damage generally seem unable to differentiate organic from schizophrenic NP patients, an attempt was made to determine whether measures taken from a personality test might prove so capable. Accordingly the MMPI profiles of 50 organics with evidence of cerebral lesions were compared to those of 50 schizophrenics. Significant between-diagnosis effects appeared on six scales and four rules were developed from the data. In cross-validational studies, the signs proved to be useful in differentiating brain-damaged from schizophrenic males but seemed to be of no value with female Ss.
Get full access to this article
View all access options for this article.
References
1.
BrownE. C.CaseyA.FischR. I.NeuringerC.Trail Making Test as a screening device for the detection of brain damage. J. consult. Psychol., 1958, 23, 469–474.
2.
DahlstromW. G.WelshG. S.MMPI handbook: a guide to use in clinical practice and research. Minneapolis: Univer. Press, 1960.
3.
GoldbergL. R.SmithP. A.The clinical usefulness of the Archimedes spiral in the diagnosis of organic brain damage. J. consult. Psychol., 1958, 22, 153–157.
4.
JohnsonD. E.BauerR. W.BrownD. R.Visual after-phenomena in diagnosis. J. consult. Psychol., 1959, 23, 90.
5.
LindquistE. F.Design and analysis of experiments in psychology and education. Boston: Houghton Mifflin, 1953.
6.
MeehlP. E.RosenA.Antecedent probability and the efficiency of psychometric signs, patterns, or cutting scores. Psychol. Bull., 1955, 52, 194–216.
7.
OrgelS. A.McDonaldR. D.An evaluation of the Trail Making Test. J. consult. Psychol., 1967, 31, 77–79.
8.
WatsonC. G.Intratest scatter in hospitalized brain-damaged and schizophrenic patients. J. consult. Psychol., 1965, 29, 596. (a).
9.
WatsonC. G.WAIS profile patterns of hospitalized brain-damaged and schizophrenic patients. J. clin. Psychol., 1965, 21, 294–295. (b).
10.
WatsonC. G.Relationship of distortion to DAP diagnostic accuracy among psychologists at three levels of sophistication. J. consult. Psychol., 1967, 31, 142–146.
11.
WatsonC. G.Separation of NP hospital organics from schizophrenics with three visual motor screening tests. J. clin. Psychol., in press.
12.
WatsonC. G.FellingJ.MacEachernD. G.Objective Draw-A-Person scales: an attempted cross-validation. J. clin. Psychol., 1967, 23, 382–386.
13.
WatsonC. G.ThomasR. W.AndersenD.FellingJ.Differentiation of organics and schizophrenics at two chronicity levels by use of the Reitan-Halstead Organic Test Battery. J. consult. clin. Psychol., in press.
14.
WatsonC. G.ThomasR. W.FellingJ.AndersenD.Differentiation of organics from schizophrenics with Reitan's sensory-perceptual disturbance tests. Percept. mot. Skills, in press.
15.
WatsonC. G.UeckerA. E.An attempted cross-validation of the Minnesota Percepto-diagnostic Test. J. consult. Psychol., 1966, 30, 461.
