Simulation Observational or Experiment

using a mathematical or physical model to reproduce the conditions of a study

• simulation

• survey

• randomization

• replication

Measures variables without controlling the individuals or their environment

• Experiment

• Observational study

• Survey

• Simulation

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

A researcher stood at a school parking lot entrance to see if the color of a car is related to the driver not wearing a seatbelt.

• Observational Study

• Experiment

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

• Experiment

• Observational Study

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

• population

• observational study

• experiment

• secondary data

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

• experiment

• observational study

An ​ (a)   does not have treatments imposed.

An ​ (b)   has treatments imposed.

• Observational Study

• Experiment

Steven observed students entering a classroom for class and recorded whether the first half of the students who arrived for class chose to sit in the front half of the room.

What data collection method was used?

• Observational Study

• Experiment

• Survey

• Simulation

Observes individuals and measures variables of interest but does not attempt to influence the responses.

• experiment

• double blind

• observational study

• placebo