Flashcard--Sampling and Surveys

Front

What is a representative sample?

Back

A representative sample is a subset of a population that accurately reflects the characteristics of the larger group, allowing for valid conclusions to be drawn from the survey results.

Front

What is the importance of random selection in surveys?

Back

Random selection helps ensure that every individual in the population has an equal chance of being chosen, reducing bias and increasing the likelihood that the sample is representative.

Front

Define bias in the context of sampling.

Back

Bias in sampling occurs when certain members of the population are more likely to be selected than others, leading to skewed results that do not accurately represent the population.

Front

What is the difference between a sample and a population?

Back

A sample is a smaller group selected from a larger population, which is the entire group of individuals that researchers are interested in studying.

Front

What is a survey?

Back

A survey is a method of collecting data from a group of individuals to gather information about their opinions, behaviors, or characteristics.

Front

What is the purpose of conducting surveys?

Back

Surveys are conducted to gather insights, understand trends, and make informed decisions based on the opinions or behaviors of a specific group.

Front

What does it mean for a sample to be unbiased?

Back

An unbiased sample is one that accurately represents the population without favoring any particular group, allowing for valid conclusions.

Front

What is a convenience sample?

Back

A convenience sample is a non-random selection of individuals that is easy to access, which may lead to biased results.

Front

What is stratified sampling?

Back

Stratified sampling involves dividing the population into subgroups (strata) and randomly selecting samples from each stratum to ensure representation of all segments.

Front

What is the role of surveys in decision-making?

Back

Surveys provide data that can inform decisions, policies, and practices by reflecting the views and needs of the population.