Bio Exam 3 Missed Questions

Front 1

2016. 3. We have determined that the disease outbreak is not due to any kind of infectious cause.

Back 1

Scientifically impossible because the statement requires ruling out all alternatives

Front 2

2016. 12. The body weight for every UT student and the body weight for every A&M student

Back 2

2 variables

Front 3

2016. 16. BBQ consumption has no effect on heart disease

Back 3

Consistent, thus cannot be rejected

Front 4

2016. 22. Studying causes a student to become interested in class. Interest level determines exam score.

Back 4

No 3rd variable

Front 5

2016. STD rates have gone up in years following raises in beer taxes

Back 5

Correlation only-- the statement merely described one or more non-zero correlations

Front 6

2016. 36. Design 2 controls for patient expectation of weight change.

Back 6

True

Front 7

2016. 39. The weight of birds fed mix a is expected to be higher than the weight of birds fed mix D

Back 7

False

Front 8

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.

Back 8

False

Front 9

2016. 43. No pair of comparisons allows you to assess the effect of mix 3 when all other mixes are controlled.

Back 9

True

Front 10

2016. 49. Excitement. An experiment was designed to test the effect of facilitator awareness of the answer.

Back 10

True.

Front 11

2016. 53. The study is considered an experiment specifically because it included controls, Blind, and replication

Back 11

False

Front 12

2016. 54. This Experiemnt was the type in which the relevant 3rd variables were known in advanced.

Back 12

True

Front 13

2015. 7. 30% of UT students have iPhones; 30% of Texas A&M students have iPhones

Back 13

A zero correlation

Front 14

2015. 9. Blood type A is found in 40% of whites and 27.5% of Asians

Back 14

A non-zero correlation

Front 15

2015. 13. A correlation in which sports cars have lower accident rates than safe cars

Back 15

True

Front 16

2015. 15. A high SAT score is used as a factor that decreased the chance an applicant will be accepted into these 10 universities

Back 16

Consistent

Front 17

2015. 20. Controls are necessarily absent from correlational data because the data are gathered prior to any manipulation

Back 17

False

Front 18

2015. 35. Gender

Back 18

Is controlled for

Front 19

2015. 37. University attended before enrolling in David's course

Back 19

Controlled for

Front 20

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.

Back 20

True

Front 21

2015. 41. The pair D and H controls for no bacterial strains

Back 21

True

Front 22

2015. 44. Describes an experiment? You quit smoking with the hope that food tastes better.

Back 22

True

Front 23

2015. FC. 48. The critical feature of the design was to ask questions of the child whose answers were not known to the facilitator

Back 23

True

Front 24

2015. FC. 51. This experiment was the type in which the relevant 3rd variables were known in advanced.

Back 24

True

Front 25

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

Back 25

True

Front 26

2014. 12. The data can be interpreted as two variables measured on a single a population of students

Back 26

True

Front 27

2014. 13. The data can be interpreted as two variables measured on two populations of students

Back 27

False

Front 28

2014. 17. 30% of UT students have iPhones (the others do not); of those with iPhones, 85% are right-handed, 15% are not

Back 28

Not a non-zero correlation

Front 29

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

Back 29

Describes a non-zero correlation

Front 30

2014. 22. From the table, it is possible to obtain a correlation in which red cars have higher accident rates than other colored cars.

Back 30

True.

Front 31

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

Back 31

Describing correlation from causation

Front 32

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.

Back 32

Describing correlation from causation

Front 33

2014. 44. Compare cancer rates of smokers living near NPP with cancer rates of non-smokers living away from NPP

Back 33

Smoking not controlled

Front 34

2014. 53. Controls were the cases in which both the FC and child were shown the same object.

Back 34

True.

Front 35

2014. 55. Blind was an essential part of the experiment; blind is therefore the reason the study was considered an experiment

Back 35

False

Front 36

2014. 62. The null Model tested in the video was that horoscopes provide at least some level of predictive power.

Back 36

False.

Front 37

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?

Back 37

The data support the model

Front 38

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.

Back 38

True

Front 39

2013. 10. The problem provides enough information to determine if a correlation is present

Back 39

False

Front 40

2013. 12. The mean for exam 2 was lower than exam 1

Back 40

Describes a non-zero correlation

Front 41

2013. 13. 98% of convicted felons eat bread

Back 41

Does not describe a non zero correlation

Front 42

2013. 17. Talking on cell phones while driving increases car accident rates

Back 42

Does not describe a non-zero correlation

Front 43

2013. 35. Controlled for? Exam difficulty

Back 43

No

Front 44

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

Back 44

True

Front 45

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.

Back 45

Car type controlled

Front 46

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

Back 46

Valid argument

Front 47

2013. 56. We suggested that it was ambiguous as to whether a control group was present in the horoscope video.

Back 47

True.

Front 48

2013. 58. The video illustrated three different psychic methods that were evaluated scientifically: tarot card readings, horoscopes, and palm reading

Back 48

False

Front 49

2013. 65. Experiment? Monitor brain waves of child and facilitator to determine who is responding

Back 49

Not an experiment

Front 50

2012. 8. On average, the 11 lecture has more attending students than the 10 lecture

Back 50

Non zero correlation

Front 51

2012. 9. Texting while driving increases accident rates

Back 51

Does not describe a non zero correlation

Front 52

2012. 12. Adult men are on average taller than adult women

Back 52

Does describe a non zero correlation

Front 53

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.

Back 53

Third variable is not present

Front 54

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.

Back 54

False

Front 55

2012. 46. Apply to experiments but not correlational data? Blind.

Back 55

Relevant to both

Front 56

2012. 47. Apply to experiments but not correlational data? Randomization.

Back 56

Relevant to both

Front 57

2012. 48. Apply to experiments but not correlational data? Controls

Back 57

Relevant to both

Front 58

2012. 49. Apply to experiments but not correlational data? Replication

Back 58

Relevant to both

Front 59

2012. 53. Explicitly included in the FC experiments? Standards.

Back 59

Not explicitly included

Front 60

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

Back 60

True

Front 61

2012. 71. Clinical trials with humans typically include features of blind, random, and replication, but they often lack controls (for ethical reasons)

Back 61

False

Front 62

2011. 1. Which statements are True?

Back 62

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

Front 63

2011. 2. Describes a non zero correlation

Back 63

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

Front 64

2011. 3. Invokes a third variable

Back 64

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

Front 65

2011. 4. Inconsistent with graph?

Back 65

SAT score is negatively correlated with VG activity

Front 66

2011. 6. True?

Back 66

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

Front 67

2011. 18. Correct?

Back 67

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

Front 68

2010. 2. True?

Back 68

Front 69

2010. 3. Non zero correlation?

Back 69

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

Front 70

2010. 7. True?

Back 70

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

Front 71

2010. 12

Back 71

C. Nuclear power plants increase cancer rates

Front 72

2010. 13. Which options about the in class personality every and/or video of the mock horoscope are True?

Back 72

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

Front 73

2010. 14. True about FC?

Back 73

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

Front 74

2010. 15. Which are true of phase III clinic drug trials with humans?

Back 74

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