PROBLEMMuch of the work of a clinical psychologist consists of making relatively routine psychological measurements of fairly well established traits, either cognitive or orectic. It is well known, however, that there can be no measurement without error. The psychologist must have the means of taking error into account if he is to assess his test scores intelligently. There appear to be three main types of question which face clinical psychologists:
These finding suggest an association between bacterial infection and inflammatory arthritides in some patients. Further research is required to determine the role of these organisms in the pathogenesis and whether such patients might respond to prolonged antibiotic therapy.
South San FraaCisco, CA 94080, USA.Rheumatoid ardvitis (RA) may be defined as a Synnndrical synovitis, associated with a form of erosion and often associated with systemic features. Outcome is variable from a self limiting condition to one that may persist for the lifetime of the patient. The term early synovitis identi6cs a group of subjects with joint i d a m m r~ .on or a history ofjoint i d b m a t h of less than 6 months. Sane oftbese individuals will develop chrmic inflanrmato rydirep#,otberswill make afuU ncovery.
Various investigations into the effects of brain injury on psychological test performance (Weisenburg and McBride, 1935; Patterson and Zangwill, 1944; Anderson, 1951; McFie and Piercy, 1952; Bauer and Becka, 1954; Milner, 1954) suggest the overall conclusion that patients with left hemisphere lesions are relatively poor at verbal tasks, while those with right-sided lesions do worst at practical tasks, particularly the manipulation of spatial or spatio-temporal relationships. Heilbfun's (1956) study confirmed that verbal deficits result from left-sided lesions but his left and right hemisphere groups produced almost identical scores on spatial tests. In so far as these workers paid attention to the specific sites of the lesions, their findings indicate that the pattern of test performance is a function of the hemisphere in which the lesion occurs rather than of its specific locus.
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