AP Stats 4.2 Vocab Quiz

When all experimental units are allocated at random among all treatments.

• Randomization

• Block design

• Factor

• Matched-Pairs Design

• Level

The random assignment of units to treatments is carried out separately within each block.

• randomization

• block design

• factor

• matched-pairs design

• double blind experiment

When the experimental units are human beings, the units are called this.

• block design

• blocks

• subjects

• levels

Design that compares two treatments.

• matched pairs design

• block design

• double blind experiment

• hidden bias

Experiment in which neither the subjects nor those who measure the response variable know which treatment a subject received.

• block design

• matched pairs design

• double blind

• randomization

The explanatory variables in an experiment.

• factor

• block

• subject

• levels

Bias that is not present in the entire population.

• factor

• level

• subject

• hidden bias

Part of experimental design that reduces variation.

• treatment

• replication

• control

• placebo

An observed effect so large that it would rarely occur by chance.

• control

• replication

• statistically significant

• completely randomized experiment

The individuals on which the experiment is done.

• treatment

• control

• completely randomized experiment

• experimental units