Psych Lecture 2 - Which of the following correlation...

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1 Which of the following correlation coefficients indicates the strongest relationship between variables? A. positive .05 B. negative .25 C. positive .75 D. negative .95
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2 Which of the following represents the average score in a distribution? A. the mode B. the mean C. the median D. the standard deviation
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3 Dr. Anderson conducts an experiment to see whether exposure to helpful models leads to helping behavior in young children. Of the forty girls and boys in his study, half are exposed to helpful models while the other half watch the same models not engaged in helping behavior. In this experiment, the dependent variable is: A. the gender of the children. B. helpful or non-helpful models. C. the age of the children. D. helping behavior.
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4 Which of the following is the best way to generate a random sample of students for a research study? A. mail out a questionnaire that students could voluntarily complete and return B. stand by the door of the library and ask people who pass by to answer your questions C. offer extra credit for students in a particular classroom who choose to participate D. use a table of random numbers to pick participants from a student listing
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5 A significant disadvantage of the correlational approach is that it: A. does not provide evidence of cause and effect. B. cannot be used to examine relationships between variables that exist naturally. C. does not aid in the process of prediction. D. does not provide information about how two variables are related.
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6 Fitzpatrick concluded that there was a statistically significant difference between the scores of the experimental and control groups. In other words, A. the difference is highly meaningful and important to scientists. B. the results are replicable. C. the scores differed by five points or more. D. it is unlikely that the difference occurred by chance.
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7 Independent Variable  is a factor, manipulated by the  experimenter, and whose effect is being studied. For example, to study the effect of breast feeding on intelligence.  Breast feeding  is the independent variable. Independent Variable
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8 Dependent Variable  is a factor that may change in response to  independent variable. In psychology it is usually a behavior or a  mental process. For example, in our study on the effect of breast feeding on  intelligence. Intelligence  is the dependent variable. Dependent Variable
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9 Describing Data Meaningful description of data is important in  research. Misrepresentation can lead to incorrect  conclusions.
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10 Measures of Central Tendency Mode:   The most frequently occurring score in a  distribution. Mean:
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Psych Lecture 2 - Which of the following correlation...

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