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Unformatted text preview: PRACTICE QUESTIONS FOR EXAM 1 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? a. a study in which observers record the sharing behavior of preschool, elementary school, and high school children and make comparisons among these three groups. b. a study in which all variability in the subjects heart rates (used as the measure of the dependent variable) is shown to be due to the type of film they are required to watch (where different types of film define the different levels of the independent variable). c. a study that is conducted in a laboratory setting d. a study in which a significant effect has been obtained e. two of the above 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 the supervisor watching or the other way around, and he keeps track so that an equal number of subjects end up performing the task in each of the two orders. When the supervisor is watching, Dr. Ford has the supervisor rate each subject's performance on a supervisor is watching, Dr....
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- Spring '08