Experiments, Sampling, Bias, etc.

Front

What is undercoverage bias?

Back

Undercoverage bias occurs when some members of the population are inadequately represented in the sample, leading to a lack of opportunity for them to respond.

Front

What population can we generalize data from a sample of 3462 adults in Lausanne, Switzerland?

Back

The data can be generalized to all adults in Lausanne, Switzerland.

Front

Do all experiments need a control group?

Back

True, all experiments should have a control group to compare the effects of the treatment.

Front

What does it mean if an experiment is single-blind?

Back

In a single-blind experiment, the subjects do not know which treatment they are receiving, but the researchers do.

Front

What is a sample in research?

Back

A sample is a small portion of the population used to gather data from.

Front

What is response bias?

Back

Response bias occurs when participants provide inaccurate responses due to various factors, such as misunderstanding questions or social desirability.

Front

What is nonresponse bias?

Back

Nonresponse bias occurs when a significant number of selected participants do not respond, potentially skewing the results.

Front

What is the purpose of a control group in an experiment?

Back

The control group serves as a baseline to compare the effects of the treatment group.

Front

What is systematic sampling?

Back

Systematic sampling is a method where you select every nth individual from a list of the population.

Front

What is the difference between a population and a sample?

Back

A population includes all members of a specified group, while a sample is a subset of that population.