DrRhodes Notices an Interaction in His Factorial Study

question 45

Multiple Choice

Dr.Rhodes notices an interaction in his factorial study.In describing this, which statement might he use to explain the link between Independent Variable A and Independent Variable B in predicting the dependent variable?

• A) Variable A cancels out Variable B.
• B) The effect of Variable A depends on Variable B.
• C) Variable A mainly affects Variable B.
• D) The effect of Variable A is mediated by Variable B.

---

Definitions:

Asthma

A chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm.

Acetylcholine

A neurotransmitter involved in many functions including muscle movement and memory, acting as a chemical messenger in the nervous system.

CNS

The central nervous system, comprising the brain and spinal cord, which functions as the primary control center for processing and responding to neural information.

Neurotransmitter

A neurotransmitter is a chemical substance that transmits signals across a synapse from one neuron to another neuron or to an effector cell (like a muscle or gland).