Data Collection and Experimental Design

What sampling technique is used in this study.

Every 3rd person walking by is asked their opinion on a certain topic.

• Convenience

• Systematic

• Cluster

• Random

In a local community, 3 different Publix stores are chosen randomly, out of all 15 Publix stores in the community, and the salaries of all 3 employees in those 3 stores are used as data. Is an example of what sampling technique?

• Stratified

• Cluster

• Random

• Systematic

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

What sampling technique is used in this study?

A researcher randomly selects and interviews twenty male and twenty female flight attendants about their safety.

• Convenience

• Stratified

• Cluster

• Random

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

A researcher for an airline interviews all of the passengers on a flight he happens to be taking home from a recent trip.

• Random

• Census

• Systematic

• Cluster

A community college student interviews everyone in his biology class to determine the percent of students that own car.

• Systematic

• Convenience

• Random

• Stratified

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

Classify what type of study does each represent:

a. A study of Florida college professors' opinions on teaching classes online.

b. A study on the effect of low dietary intake of vitamin C and iron on lead levels in adults.

c. A study of how many students show up early to class on Monday.

• Survey; Experiment; Survey

• Survey; Observational; Experiment

• Survey; Experiment; Observational

• Observational; Experiment; Survey

Tags

CCSS.HSS.IC.B.3

Is diet or exercise effective in combating insomnia? Some believe that cutting out desserts can help alleviate the problem, while others recommend exercise. Forty volunteers suffering from insomnia agreed to participate in a month-long experiment. Half were randomly assigned to a special no-desserts diet; the others continued desserts as usual. Half of the people in each of these groups were randomly assigned to an exercise program, while the others did not exercise. Those who ate no desserts and engaged in exercise showed the most improvement. 

• Observational Study
• Experiment

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5

A researcher wants to know the average amount of bamboo consumed by the new pandas at the Atlanta zoo. She records the amount of bamboo consumed every for 3 months. Is this an example of an experimental study or observational study.

• experimental study

• observational study

Tags

CCSS.HSS.IC.B.3

A placebo is...

• an inactive "look-alike" meant to seem real
• a rare type of African bird indigenous to the foothills of Morocco
• Something used to hunt with
• the change in symptoms as a result of an inactive "look-alike"

Tags

CCSS.HSS.IC.B.5

What is the placebo effect?

• Something that affects the neurological pathways causing people to do nonsensical things.

• When someone believes a medication works but the medication was not medicated.

• A dangerous experiment that can harm the person that is experimented.

• A disease that effects the brain, worse than meningitis

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5