Surveys (vs) Experiments

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the main difference between surveys and experiments?
Back
Surveys collect data through questionnaires or interviews, while experiments manipulate variables to observe effects.
2.
FLASHCARD QUESTION
Front
Define 'Population' in the context of surveys and experiments.
Back
Population refers to the entire group of individuals or instances about whom we hope to learn.
3.
FLASHCARD QUESTION
Front
What is a sample in research?
Back
A sample is a subset of the population selected for participation in a study.
4.
FLASHCARD QUESTION
Front
What is stratified sampling?
Back
Stratified sampling involves dividing the population into subgroups and randomly selecting samples from each subgroup.
5.
FLASHCARD QUESTION
Front
What is cluster sampling?
Back
Cluster sampling involves dividing the population into clusters (often geographically) and randomly selecting entire clusters for the study.
6.
FLASHCARD QUESTION
Front
What does biased sampling mean?
Back
Biased sampling occurs when certain members of the population are more likely to be selected than others, leading to skewed results.
7.
FLASHCARD QUESTION
Front
What is an observational study?
Back
An observational study is a type of research where the researcher observes and records behavior without manipulating any variables.
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