Chapter 4 Part I

A researcher randomly assigned students to two groups. One group was assigned to watch a violent television program while the other group watched a nonviolent program. The student's behavior was then recorded for incidences of aggressive behavior. Which research method is most appropriate?

• experimental

• census

• sample survey

• observational study

Jane Goodall lived among wild chimpanzees intermittently for decades, studying their social and family systems while keeping her interaction with the chimpanzees to a minimum. Which research method is most appropriate?

• biased study

• census

• experiment

• observational study

A hospital wants to open a gym. They ask the night-shift ER staff when they would use the gym. Is this sample biased or unbiased?

• Biased

• Unbiased

• Not able to be determined.

Ghala wanted to know what the most popular book was in the whole school, so she asked everybody in 11th grade what their favorite book was. Which research method is most appropriate?

• Sample Survey

• Census

• Experiment

• Biased Sample

Osman wanted to know what this weekends favorite movie was among RBHS students so he asked everyone at RBHS and counted the number of movie preferences.

Which research method is most appropriate?

• Census

• Sample Survey

• Experiment

• Biased Sample

A researcher stood at a school parking lot entrance to see if the color of a car is related to the driver not wearing a seat belt.

Which research method is most appropriate?

• Observational Study

• Experiment

• Census

• Correlation

A __________ is an entire set of items from which data are collected.

• category

• sample

• population

A ___________ is a question that anticipates an answer based on data that vary.

• funny question

• statistical question

• mathematical question

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first 30 students who come into her class.

• Convenience Sampling

• Systematic Random Sampling

• Simple Random Sampling

• Volunteer response

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected.

• systematic

• simple random sample

• convenience

• Self - selected (volunteer)