Experiment Survey Observational Study

A teacher asks all her students five questions about their study habits.

• Survey

• Observational Study

• Experiment

You want to see if students who have a 4.0 grade point average study more than those who do not.

• experiment

• observational study

To test the effects of breakfast on grades I ask my students if they ate breakfast and then compare the breakfast eaters grades to the non-breakfast eaters. This is an example of:

• Observational study

• Experiment

Which research method is most appropriate?

• Observational Study

• Experiment

• Census

• Sample Survey

Individuals are monitored for measures of variables of interest but not influenced in response.

• Observational Study

• Experiment

• Voluntary Response

• Single-Blind

Individuals are observed and variables are measured without controlling the individuals or the environment

• population

• observational study

• experiment

• secondary data

In an ________________, a researcher observes and measures characteristics of interest of part of the population but does not change existing conditions.

• Experiment

• Observational Study

a controlled study in which the researcher attempts to understand cause-and-effect relationships by assigning subjects to groups and deciding which treatments each group receives

• survey

• observational study

• experiment

a questionnaire given to a population or a sample of population

• survey

• observational study

• experiment

You want to find out if people who eat a candy bar immediately before a math test get higher scores than people who do not.

• survey

• observational study

• experiment