31) According to the DSM-IV, each of the following is a clinical feature of schizophrenia EXCEPT ________. A) schizoaffective and mood disorders must be present B) symptoms cannot be attributed to the effects of a substance C) functioning in work, self-care, and social relations must be markedly lower than the level achieved prior to the onset of the disorder D) signs of the disorder must have occurred continuously for a period of at least six months 32) About ________ % of Canadians warrant a diagnosis of schizophrenia at some point in their lives. A) 1 B) 3 C) 5 D) 7 33) The rates of schizophrenia appear to be A) higher in developed countries than in developing countries. B) higher in developing countries than in developed countries. C) similar in developed and developing countries. D) unknown due to problems gathering data in developing countries. 34) Schizophrenia typically develops in ________. A) late childhood to early adolescence B) early to late adolescence C) late adolescence to early adulthood D) early to middle adulthood 35) About ________ % of the time, the first signs of schizophrenia appear by age 25. A) 25 B) 50 C) 75 D) 95 36) Simone’s behaviour is characterized by waning interest in social activities. She just can’t seem to keep up with her daily responsibilities. She can’t even find the time to bathe or change her clothes regularly. At times she rambles off incoherently when talking to her friends. Her behaviour is typical of someone in the ________ phase of schizophrenia. A) residual B) acute C) chronic D) prodromal 37) The phase of schizophrenia marked by a slow, steady deterioration and gradual decline in function before clear-cut psychotic behaviours emerge is called the ________ phase. A) residual B) acute C) chronic D) prodromal 38) Rachel has schizophrenia. Her behaviour is characterized by hallucinations, delusions, talking to herself in the street, and incoherent ranting and raving at passersby. She never bathes or changes her clothes. She collects garbage and hoards scraps of food. She is in the ________ phase of schizophrenia A) residual B) acute C) chronic D) prodromal 39) Leticia has schizophrenia. Her behaviour is characterized by difficulties in speaking and thinking clearly, as well as a deep sense of apathy. Although she is not hallucinating or suffering delusions, as she had been a few months previously, and she is still having so much difficulty organizing herself to deal with daily tasks that it is nearly impossible for her to live independently. She is in the ________ phase of schizophrenia. A) residual B) acute C) chronic D) prodromal 40) After the onset of a schizophrenic episode, a full return to normal behaviour ________. A) almost never occurs B) is uncommon, but does occur C) commonly, but not always, occurs D) almost always occurs