3 types of studies

Front

What is an observational study?

Back

An observational study is a type of research where the researcher observes and records behavior or outcomes without manipulating any variables. No treatment is assigned.

Front

What is an experiment in research?

Back

An experiment is a study in which the researcher manipulates one or more variables to determine their effect on a dependent variable, often involving a control group.

Front

What is a survey?

Back

A survey is a method of collecting data by asking people questions, often used to gather opinions, behaviors, or characteristics from a sample of a population.

Tags

CCSS.RI.8.7

CCSS.RI.9-10.7

CCSS.RL.11-12.7

CCSS.RL.8.7

CCSS.RL.9-10.7

Front

What is the main characteristic of an observational study?

Back

Generally, a control group is not needed in an observational study.

Front

What type of study involves random assignment of participants to different groups?

Back

An experiment.

Front

In which type of study can results be generalized to a larger population?

Back

Results from a survey can often be generalized if the sample is representative.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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 on the experimental group.

Front

What is a key difference between observational studies and experiments?

Back

Observational studies do not involve manipulation of variables, while experiments do.

Front

What type of study was conducted when a researcher asks people about their opinions at a mall?

Back

This is a survey.

Tags

CCSS.RL.11-12.6

Front

What is the significance of random selection in surveys?

Back

Random selection helps ensure that the sample is representative of the larger population, reducing bias.

Tags

CCSS.HSS.IC.B.3