Reference no: EM133095901

QUESTION 1

An exhibit was held at a school to try to increase art appreciation among students. Classes were randomly assigned to receive a guided tour or visit the exhibit with no guided tour. After school, some of the students visited the exhibit together, and some who went on the guided tour shared what they learned with their friends in the control group.

A. Heterogeneous treatment effect

B. Placebo effect

C. Contamination

D. Hawthorne effect

QUESTION 2

A researcher told employees of a company that he would be observing them and recording their conversation as part of a study about workplace practices. The members acted differently than they would have if the researcher was not there.

A. Contamination

B. Hawthorne effect

C. Placebo effect

D. Heterogeneous treatment effect

QUESTION 3

A therapist obtained permission from her patients to conduct an experiment: she would use new techniques learned at a conference and by reading cutting-edge research articles with the intervention group, and use her standard practices with the control group. The patients expressed more satisfaction with their weekly sessions regardless of whether they were in the treatment or control group.

A. Heterogeneous treatment effect

B. Hawthorne effect

C. Contamination

D. Placebo effect

QUESTION 4

A camp for children with life-threatening illnesses and their families was found to reduce anxiety among the children. However, the effect was stronger for children who had a sibling with them, and weaker for older children.

A. Contamination

B. Hawthorne effect

C. Heterogeneous treatment effect

D. Placebo effect

QUESTION 5

Which is an example of intent to treat analysis in an experimental food stamp program?

A. Members of the treatment group who used less than half of the food stamps they received were not included in the statistical analysis

B. Individuals in the control group who did not take a posttest are dropped from the study.

C. All participants were kept in their original group-treatment or control-regardless of whether they participated fully.

D. Those in the treatment group who never showed up to get their benefit card were changed to the control group.

QUESTION 6

A group of medical practitioners are studying the effects of a drug on patients. They administered the drug to one group, and withheld the intervention / treatment from the other. They determined who was in which group based on a random number generator. This is known as:

A. Indiscriminate selection

B. Random assignment

C. Chance assignment

D. Unsystematic selection

QUESTION 7

Two researchers are interested in studying how different settings for breakfast (classroom or cafeteria) affect elementary students breakfast consumption and attention in class. This type of study would utilize a ________ to study the students in a real-world setting.

A. Ground experiment

B. Thematic experiment

C. Field experiment

D. Provincial experiment

QUESTION 8

A researcher wants to compare multiple possible treatment or control conditions for a particular disease. These are referred to as the ____ of an experiment.

A. Arms

B. Units

C. Legs

D. Ancillaries

QUESTION 9

Researchers must be aware of and address the possibility of ________, where participants drop out from the experiment.

A. Attrition

B. Forfeiture

C. Erosion

D. Corrosion

QUESTION 10

Professor Lee is conducting a study on the psychological effects of gambling. She wants to make sure that the findings from her study may potentially help some gamblers avoid addiction. This is known as:

A. Munificence

B. Beneficence

C. Benevolence

D. Informed Consent