The Following Data Represent the Means for Each Treatment Condition

question 50

Multiple Choice

The following data represent the means for each treatment condition in a two-factor experiment. What pattern of results is shown in the data? $\begin{array}{c}\begin{array}{lll}\text { B1 } \\\\\text { B2 } \end{array}\begin{array}{ | l | l| } \hline \\ \mathrm { M } = 20 & \mathrm { M } = 20 \\\\ \mathrm { M } = 30 & \mathrm { M } = 50 \\\hline\end{array}\end{array}$

• A) Main effects for both factors and an interaction
• B) Main effects for both factors and no interaction
• C) A main effect for factor A, no main effect for factor B, and no interaction
• D) A main effect for factor A and an interaction but no main effect for factor B

---

Definitions:

Necrotic

Pertaining to the death of cells or tissues in the body, often as a result of disease, injury, or lack of blood supply.

Autonomic Nervous System

A part of the nervous system that controls involuntary actions of the smooth muscles and heart and also regulates glandular functions.

Glands

Organs in the body that secrete hormones or other substances directly into the blood or onto a body surface.

Smooth Muscles

Involuntary muscles found in various parts of the body, such as the intestines and blood vessels, that contract and relax without conscious control.