“…There is also a large amount of disagreement in the general findings reported. Often it is claimed that psychotics manifesting the greater intellectual power are more likely to improve (16, 21,57,89,92,98,105,143,144,145,174,175,181), but just as frequently no relationship is found (45,57,66,121,130,143,144,165,181,183) or else those who perform less efficiently on ability tests show the better outcome (91,92,106,107,116,133,145,175,182,183).…”