Exam1PracticeAnswers_Win2008 - ANSWERS TO PRACTICE...

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ANSWERS TO PRACTICE QUESTIONS FOR EXAM 1 For each practice question below, the correct alternative appears underlined. As discussed in lecture, however, in order to optimize your learning and thus your performance on the actual Exam 1, you should first try to answer these questions on the form of the exam that does not indicate the correct alternatives. 1. Science can be described as being “self-correcting.” This characteristics of science derives from the fact that a. scientific explanations are held to be tentative b. scientific hypotheses are difficult to test c. scientist are well trained and thus rarely make mistakes in conducting their research d. scientists only accept results obtained in prestigious universities and research centers; thus, once proven, a scientific explanation is rarely rejected e. scientific hypotheses must be confirmed at least twice before they are taken seriously Answer the next two questions with respect to the following paragraph. Dr. Hook is interested in whether people read different types of material at different rates. Subjects are asked to read one humorous story, one mystery story, and one sad story, each of which was written by a different author. The stories are presented in all six possible orders, with equal numbers of subjects receiving each order. Dr. Hook records the length of time it takes subjects to read the first 100 lines of each story. 2. The dependent variable in the study is a.type of story read by each subject b.order in which the stories are presented c.subjects’ reading rates for the different types of stories d.subjects' reading comprehension for the different types of stories 3. A confounding variable in this study is a.the type of story subjects are reading b.the authors of the stories c.the length of time it takes for subjects to read the first 100 lines of each story d.subjects' reading comprehension e.the order in which the stories are presented ---------------------------------------------------------------------------- 4. Which of the following accurately describe(s) a study with high internal validity?
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Answer the next four questions with respect to the following paragraph. Dr. Ford wants to study the effect of authority figures on people's job performance. He gathers a random sample of bricklayers from a construction site and has them all lay bricks, both alone and in the presence of a supervisor. For each subject, Dr. Ford tosses a coin to determine whether that individual will first perform the task alone and then with
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