Shannon is in the 4th grade. When the 11:30 bell rings, Shannon and her classmates will get up from their seats and go to the lunchroom. For Shannon and her classmates, the bell is a __________

A) discriminated variable.
B) stimulus.
C) conditioner.
D) neutral prompt.

Discriminated Variable

A variable in experimental research that is manipulated or changed to determine its effects on dependent variables, differentiating it from control variables.

Stimulus

Anything that triggers a physical or behavioral change in an organism.

Neutral Prompt

A stimulus that does not inherently evoke a response prior to conditioning or learning in the context of behavioral experiments.