Stat Vocab 4.3-4.6

In this type of experiment, neither the subjects nor those who interact with them and/or measure the response variable know which treatment a subject received.

• Matched-Pair Experiment

• Placebo Effect

• Double-Blind Experiment

• Completely Randomized Experiment

The individuals or items to which treatments are applied.

• Explanatory

  Variable

• Experimental

  Units

• Response

  Variable

• Confounding

  Variable

A factor that could potentially be influencing the outcome in an experiment or study, but is not officially being tested.

• Explanatory

  Variable

• Experimental

  Units

• Response

  Variable

• Confounding

  Variable

The process of drawing conclusions about a population on the basis of sample data.

• Inference

• Treatment

• Response

  Variable

• Explanatory

  Variable

The response to a dummy treatment.

• Inference

• Treatment

• Placebo Effect

• Response

  Variable

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

• Explanatory

  Variable

• Experimental

  Units

• Response

  Variable

• Confounding

  Variable

A specific condition applied to the individuals in an experiment.

• Explanatory

  Variable

• Treatment

• Placebo Effect

• Response

  Variable

The factor that measures the outcome of an experiment or study.

• Explanatory

  Variable

• Experimental

  Units

• Response

  Variable

• Confounding

  Variable

A common type of randomized block design for comparing two treatments in which similar experimental units are paired before randomly assigning them to different treatment groups.

• Matched-Pair Experiment

• Random

  Sampling

• Double-Blind Experiment

• Completely Randomized Experiment

Identify which of the four principles of experimental design is described:

Experimental units are assigned to treatment groups by a chance process.

• Comparision

• Control

• Replication

• Random Assignment