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74 Cards in this Set
- Front
- Back
2016. 3. We have determined that the disease outbreak is not due to any kind of infectious cause. |
Scientifically impossible because the statement requires ruling out all alternatives |
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2016. 12. The body weight for every UT student and the body weight for every A&M student |
2 variables |
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2016. 16. BBQ consumption has no effect on heart disease |
Consistent, thus cannot be rejected |
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2016. 22. Studying causes a student to become interested in class. Interest level determines exam score. |
No 3rd variable |
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2016. STD rates have gone up in years following raises in beer taxes |
Correlation only-- the statement merely described one or more non-zero correlations |
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2016. 36. Design 2 controls for patient expectation of weight change. |
True |
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2016. 39. The weight of birds fed mix a is expected to be higher than the weight of birds fed mix D |
False |
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2016. 42. The average weight of birds fed one mix is always expected to differ from the average weight of bird fed a different mix. |
False |
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2016. 43. No pair of comparisons allows you to assess the effect of mix 3 when all other mixes are controlled. |
True |
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2016. 49. Excitement. An experiment was designed to test the effect of facilitator awareness of the answer. |
True. |
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2016. 53. The study is considered an experiment specifically because it included controls, Blind, and replication |
False |
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2016. 54. This Experiemnt was the type in which the relevant 3rd variables were known in advanced. |
True |
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2015. 7. 30% of UT students have iPhones; 30% of Texas A&M students have iPhones |
A zero correlation |
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2015. 9. Blood type A is found in 40% of whites and 27.5% of Asians |
A non-zero correlation |
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2015. 13. A correlation in which sports cars have lower accident rates than safe cars |
True |
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2015. 15. A high SAT score is used as a factor that decreased the chance an applicant will be accepted into these 10 universities |
Consistent |
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2015. 20. Controls are necessarily absent from correlational data because the data are gathered prior to any manipulation |
False |
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2015. 35. Gender |
Is controlled for |
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2015. 37. University attended before enrolling in David's course |
Controlled for |
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2015. 40. Any one of B, C, D, or E can be compared with the row above it or with the row below it to control for all bacterial strains except one. |
True |
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2015. 41. The pair D and H controls for no bacterial strains |
True |
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2015. 44. Describes an experiment? You quit smoking with the hope that food tastes better. |
True |
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2015. FC. 48. The critical feature of the design was to ask questions of the child whose answers were not known to the facilitator |
True |
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2015. FC. 51. This experiment was the type in which the relevant 3rd variables were known in advanced. |
True |
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2014. 8. In a test of a null model such as that involving the probability of heads in a coin flip, ANY observable outcome is theoretically possible under the null model |
True |
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2014. 12. The data can be interpreted as two variables measured on a single a population of students |
True |
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2014. 13. The data can be interpreted as two variables measured on two populations of students |
False |
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2014. 17. 30% of UT students have iPhones (the others do not); of those with iPhones, 85% are right-handed, 15% are not |
Not a non-zero correlation |
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2014. 18. Joe and Bernie are big UT fans. They have special burnt orange shirts they wear in UT games and only on UT game days |
Describes a non-zero correlation |
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2014. 22. From the table, it is possible to obtain a correlation in which red cars have higher accident rates than other colored cars. |
True. |
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2014. 37. Drinking alcohol impairs a person's coordination. As a consequence, drunk drivers are involved in auto accidents more often than are sober drivers |
Describing correlation from causation |
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2014. 39. A person is more apt to make mistakes when they are sleepy than when they have had adequate sleep because the lack of sleep impairs judgment. As a consequence, sleepy drivers are involved in auto accidents more often than are awake drivers. |
Describing correlation from causation |
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2014. 44. Compare cancer rates of smokers living near NPP with cancer rates of non-smokers living away from NPP |
Smoking not controlled |
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2014. 53. Controls were the cases in which both the FC and child were shown the same object. |
True. |
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2014. 55. Blind was an essential part of the experiment; blind is therefore the reason the study was considered an experiment |
False |
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2014. 62. The null Model tested in the video was that horoscopes provide at least some level of predictive power. |
False. |
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2013. 3. Of 100 models that the data might have refuted, the data refute all but one. What do we say about the relationship of the data to the one model that was not refuted? |
The data support the model |
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2013. 5. In testing the model that smokers have lung cancer rates at least five times that of non-smokers, data showing that smokers have 7 lung cancers per 1000 per year and non-smokers have 3 lung cancers per 1000 per year would be inconsistent with the model. |
True |
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2013. 10. The problem provides enough information to determine if a correlation is present |
False |
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2013. 12. The mean for exam 2 was lower than exam 1 |
Describes a non-zero correlation |
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2013. 13. 98% of convicted felons eat bread |
Does not describe a non zero correlation |
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2013. 17. Talking on cell phones while driving increases car accident rates |
Does not describe a non-zero correlation |
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2013. 35. Controlled for? Exam difficulty |
No |
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2013. 44. Assuming that no factors other tha V, X, Y, Z, & M are important to weight, when comparing the weight of cows from row B with those from F, ANY difference in weights would be attributed to factor Z |
True |
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2013. 48. For each car to be used in the study, you paint them a new color, choosing color at random. Then study the accident rates. |
Car type controlled |
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2013. 52. The controls for the study were the cases in which the child and facilitator were shown the same photo; the fact that the correct response was typed in these cases demonstrated that the FC setting was operating in the usual fashion |
Valid argument |
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2013. 56. We suggested that it was ambiguous as to whether a control group was present in the horoscope video. |
True. |
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2013. 58. The video illustrated three different psychic methods that were evaluated scientifically: tarot card readings, horoscopes, and palm reading |
False |
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2013. 65. Experiment? Monitor brain waves of child and facilitator to determine who is responding |
Not an experiment |
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2012. 8. On average, the 11 lecture has more attending students than the 10 lecture |
Non zero correlation |
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2012. 9. Texting while driving increases accident rates |
Does not describe a non zero correlation |
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2012. 12. Adult men are on average taller than adult women |
Does describe a non zero correlation |
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2012. 16. Pesticide change the composition of bacteria and fungi in the yard. Different bacteria and fungi determine the cancer rate of dogs in the yard. |
Third variable is not present |
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2012. 21. If no other 3rd variables apply, the table shoes that owning a car will be positively correlated with being Republican no matter what numbers of people go in the 4 cells. |
False |
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2012. 46. Apply to experiments but not correlational data? Blind. |
Relevant to both |
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2012. 47. Apply to experiments but not correlational data? Randomization. |
Relevant to both |
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2012. 48. Apply to experiments but not correlational data? Controls |
Relevant to both |
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2012. 49. Apply to experiments but not correlational data? Replication |
Relevant to both |
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2012. 53. Explicitly included in the FC experiments? Standards. |
Not explicitly included |
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2012. 63. We concluded from the video that it is possible to test the validity of psychic predictions BUT that it is not possible to show that there is no validity to sets of psychic predictions |
True |
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2012. 71. Clinical trials with humans typically include features of blind, random, and replication, but they often lack controls (for ethical reasons) |
False |
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2011. 1. Which statements are True? |
A. A statistical test is a shortcut to replication B. If a stat test tells us that the observed data would be expected under the null model at P=0.05, it means that the null model would give similar results in 1 out of 20 trials. E. No scientific theory can explain everything G. Data are consistent with a model if they do not reject it |
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2011. 2. Describes a non zero correlation |
A. Cultures with high dietary levels of red meat have higher rates of colon cancer than other cultures. C. Outdoor temperatures in Austin are cooler in December than July. D. During and talking on cell phones increases car accident rates, but drivers who talk while driving have lower accident rates than those who do not talk while driving E. UT men have higher insurance rates than UT women |
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2011. 3. Invokes a third variable |
B. The physical environments of societies with high alcohol consumption are stressful. Stress reduces lifespan and causes people to drink in excess. C. Societies vary in the physical activities-- exercise levels-- of their populations. Those with lots of exercise do not have time to drink excessively; those with little exercise have plenty of time to drink. High levels of exercise increase lifespan |
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2011. 4. Inconsistent with graph? |
SAT score is negatively correlated with VG activity |
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2011. 6. True? |
If no other 3rd variables apply, the table shows that the combination of no coffee and no exercise has the highest voting rate of the 4 cells |
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2011. 18. Correct? |
The ideal data features present in both the horoscope and palm reading experiments included blind and replication. However, although controls were clearly present for the palm reading test, it was not clear whether controls existed for the horoscope test |
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2010. 2. True? |
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2010. 3. Non zero correlation? |
A. The accident rate of red cars is 5 per 1000 per year; the accident rate of non red cars is 3 per 1000 per year. B. Large universities have higher football winning rates than small universities. C. Schools that have large student bodies spend more on athletics than schools with small student bodies. F. People who talk on cell phones have higher accident rates than people who do not talk on cell phones while driving |
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2010. 7. True? |
A. If no other 3rd variables apply, the table shows that the combination of no coffee and no exercise has the lowest voting rate no matter what numbers of people go in each cell B. If no other 3rd variables apply, the table shows that coffee drinking will be correlated with higher voting rates no matter what numbers of people go in each cell D. Until you get numbers for each of the cells, you cannot say what percent of all coffee drinkers vote |
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2010. 12 |
C. Nuclear power plants increase cancer rates |
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2010. 13. Which options about the in class personality every and/or video of the mock horoscope are True? |
A. The design used in class included manipulation, replication, and blind but not randomization B. Most of the bio students scored the personality description of themselves as reasonably accurate E. We suggested that it was ambiguous whether a control group was present |
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2010. 14. True about FC? |
A. Experiment: lecture and the book described two types of experiments regarding how to control for unwanted correlations among variables. The FC experiment was NOT the type in which unknown variables were controlled by randomization B. Replication: tests were conducted with multiple autistic children, multiple facilitators, and the type of test even varied. D. Blind was an essential part of these tests F. The design qualified as an experiment because it changed the normal FC environment: the child and FC were often shown different info |
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2010. 15. Which are true of phase III clinic drug trials with humans? |
B. They are considered safer than phase I and II trials D. The use of place is means that the participants are blind. Blind would necessarily be absent if people were informed of the purpose of the study and given no pill instead of a placebo |