psy2174- random practice ques. Questions and answers

A researcher is completing an experiment on pain, whereas he wants to determine how painful each instruments to administer pain are rated by university students. The researcher knows that some instruments are barely having an effect, while others are really painful. The researcher is planning on using a Latin square to map out the order of his conditions. He is however worried about participant attrition. Should he be worried? Why? Participant attrition- drop out Yes starting with painful will lead to dropping out participants Have an underrepresented group bc they drop out A researcher conducts detailed interviews with unmarried teenage fathers to learn about how they feel and what they think about their role as fathers and summarizes their feelings in a written narrative. a) qualitative b) correlational c ) experimental d) quasi- experimental qualitative A researcher randomly assigns patients with low back pain either to a treatment involving hypnosis or to a treatment involving exercise. She then measures their level of low back pain after 3 months. a) qualitative b) correlational c ) experimental d) quasi- experimental experimental A researcher measures the impulsivity of a large sample of drivers and looks at the statistical relationship between this variable and the number of traffic tickets the drivers have received. a) qualitative b) correlational c ) experimental d) quasi- experimental correlational A college instructor gives weekly quizzes to students in one section of his course but no weekly quizzes to students in another section to see whether this has an effect on their test performance. a) qualitative b) correlational c ) experimental d) quasi- experimental quasi-experimental Would studying impatience of scientists working over 12 hours a day in laboratories be a naturalistic observation? yes An educational researcher compares the academic performance of students from the "rich" side of town with that of students from the "poor" side of town. a) experimental b) correlation correlation- not manipulating IV A cognitive psychologist compares the ability of people to recall words that they were instructed to "read" with their ability to recall words that they were instructed to "imagine." a) experimental b) correlation experimental- as long as its randomize A manager studies the correlation between new employees' college grade point averages and their first-year performance reports. a) experimental b) correlation correlation- 2 variable, no groups An automotive engineer installs different stick shifts in a new car prototype, each time asking several people to rate how comfortable the stick shift feels. a) experimental b) correlation experimental- manipulating IV - people walking on street asked to answer question. random A food scientist studies the relationship between the temperature inside people's refrigerators and the amount of bacteria on their food. a) experimental b) correlation correlation A social psychologist tells some research participants that they need to hurry over to the next building to complete a study. She tells others that they can take their time. Then she observes whether they stop to help a research assistant who is pretending to be hurt. a) experimental b) correlation experimental, as long it randomized Imagine that a group of obese children is recruited for a study in which their weight is measured, then they participate for 3 months in a program that encourages them to be more active, and finally their weight is measured again. Explain how each of the following might affect the results: 1. regression to the mean 2. spontaneous remission 3. history 4. maturation 1. getting sick, losing weight (outlier) 2. went to break up- eating a lot (it's a condition that goes better with time) 3. a disease 4. get older body changes T or F. Studies without a hypothesis usually do not have a research question false What is the first step of the empirical cycle? a) Formulation of an experimental design b) Testing c) Formulation of a hypothesis d) Evaluate the data e) Observe a phenomenon e) observe a phenomenon Unfalsifiable claims and absence of connectivity to other research are signs of... Pseudoscience - use anything to make others believe is an actual science The myth that we use 10% of our brain is an example of what a) Folk psychology b) Applied psychology c) Heuristic psychology d) Mythical psychology a) folk medicine What is the third-variable problem? A variable non accounted for (for causal relationship)