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Q: A study was conducted to examine the effects of classical music on information retention during learning. Two groups of students were each given the same lists of random objects to memorize with one group hearing classical music in the background while the other group heard no background music. Which of the following would enhance the validity of the study? A Adding a third group which listened to hard rock music. B Providing the participants with lists of colors to memorize instead of objects. C Letting the group not listening to any music the opportunity to hear the music prior to beginning the study. D Surveying participants in each group for whether or not they enjoy classical music. Tags: Miscellaneous Psychology |

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Q: In a study, participants are tasked with solving a puzzle. One group is provided a monetary incentive while the other group is not.   Monetary incetives (s) No incentives (s) Mean time 82 116 Standard deviation 34 20 Which of the following accurately describes the experiment? A The monetary incentive negatively affected performance on the puzzle. B The difference between the two groups is statistically significant. C The monetary incentives had greater variability in affecting participant performance. D Some participants with no monetary incentive were able to solve the puzzle more quickly than the average participant with the monetary incentive. Tags: Miscellaneous Psychology |

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Q: A study is conducted on childhood obesity to understand the link between obesity and the consumption of high fructose corn syrup, a common sweetener. In the study, the intake of high fructose corn syrup is the: A independent variable. B dependent variable. C control. D hypothesis. Tags: Miscellaneous Psychology |

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Q: In a study, subjects were asked to rate how funny cartoons appeared. One group of subjects held a pen crosswise in their lips while making the rating, whereas the other group of subjects held a pen crosswise in their teeth. The subjects holding the pen in their teeth rated the cartoons funnier than the subjects holding the pen in their lips. The independent variable in this study was: A cartoon rating B pen position in mouth C cartoon rating and pen position D observer bias Tags: Quantitative Skills | Miscellaneous Psychology |

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Q: Under what circumstances would the median be more useful than the mean in understanding a data set? A The mean and median are very close to one another. B The distribution is heavily skewed. C The results are a normal distribution. D There are only a small number of data points. Tags: Miscellaneous Psychology |

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Q: Which of the following would NOT happen to a data set if the sample size is increased? A A skew emerges in the data set. B The median of the data set decreases. C The standard deviation increases. D The sample bias increases. Tags: Miscellaneous Psychology |

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Q: A student has answered 24 out of 35 questions correct on an exam. What is the percentile rank of his score on the exam? A between 30% and 60% B between 60% and 70% C between 70% and 100% D The answer cannot be determined from the given information. Tags: Miscellaneous Psychology |

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Q: A researcher finds that the incidence of post-traumatic stress disorder (PTSD) in veterans has increased over the last 5 years and concludes that the severity of combat scenarios is increasing over time. Which piece of information would contradict the researcher's conclusion? A Combat was primarily aerial in past years but is increasingly on the ground in challenging urban scenarios. B There was a simultaneous increase in females serving in the military over the same time period. C Political support for military intervention decreased over the last 5 years. D A decrease in stigma around PTSD leads more soldiers to report symptoms. Tags: Miscellaneous Psychology | Psychological Disorders |

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Q: A triangle test is a sensory evaluation conducted to determine whether participants can detect a difference between two items. For a taste triangle test, Solutions 1 and 2 are identical and Solution 3 is the comparison. If the solutions are indistinguishable, what percentage of participants would correctly identify Solution 3 as being different from Solutions 1 and 2? A 0% B 16.5% C 33% D 100% Tags: Miscellaneous Psychology | Making Sense of the Environment |

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Q: Which of the following is the best example of a case-control observational study? A Children from rich and poor backgrounds are tracked over time for key health indicators. B A large manufacturing workplace is studied for a correlation between smoking and productivity. C A drug is tested for effectiveness by administering it to one group of patients with a disease while another group of patients does not receive the drug. D Patients of a rare cancer are surveyed for common past exposures. Tags: Miscellaneous Psychology |

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Q: Which of the following brain waves are most indicative of deep sleep? A alpha waves B beta waves C delta waves D epsilon waves Tags: Miscellaneous Psychology |

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Q: Researchers create a mouse model where they destroy specific neurons involved in memory formation during sleep. This will most likely affect which stage of sleep? A stage 1 sleep B stage 2 sleep C non-REM sleep D REM sleep Tags: Miscellaneous Psychology |

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