Many magazines conduct surveys of their readers on certain issues Because most

Many magazines conduct surveys of their readers on

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11.Many magazines conduct surveys of their readers on certain issues. Because most of these magazines appeal to only a very circumscribed audience, e.g., working women only, women only, men only, psychologists only, their results may not be valid because they are disregarding the limitation of the sample taking the survey is not representative of the population12.Clinicians are very likely to use the case studymethod because the observations of their own patients affords them an almost unending supply of ready information. Some examples of this method include Freud's study of his clients to develop a theory of personality and Luria's study of the deficits in higher cortical functions of men with penetrating head wounds during World War II.For each of the following experimental investigations (#13-#17), identify the independent variable (IV) and the dependent variable (DV). There may be more than one IV and/or more than one DV. Identify the experimental group and the control group for each.13.A researcher is interested in how heart rate and blood pressure are affected by viewing a violent film sequence as opposed to a nonviolent film. 14.An organizational psychologist develops a new training program to improve clerk's courtesy in a large chain of retail stores. She conducts an experiment to see if the trainingprogram leads to a reduction in the number of customer complaints.
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