Experimental Vocab

Uses many experimental units in each group

• comparison

• control

• replication

• randomization

uses chance to assign units to treatment groups

• comparison

• random assignment

• control

• replication

A fake treatment

• placebo

• replication

• randomization

• experimental units

The object to which a treatment is randomly assigned.

• response variable

• randomization

• control

• experimental units

A specific condition applied to the units in an experiment.

• replication

• treatment

• experimental units

• control

A study with no treatment imposed.

• observation

• experiment

• confounding

• replication

Which is NOT a principal of a well designed experiment?

• random assignment

• replication

• units

• control

Measures the outcome of an experiment.

• response variable

• explanatory variable

• control

• comparison

The factor being studied that causes or predicts changes in the outcome.

• replication

• control

• response variable

• explanatory variable

Other variables that might affect the response variable and are kept consistent among the treatment groups.

• comparison

• control

• replication

• random assignment