When Two Potentially Effective Independent Variables Are Allowed to Covary

question 58

Multiple Choice

When two potentially effective independent variables are allowed to covary simultaneously,a __________ has occurred.

• A)covariation
• B)correlation
• C)confounding
• D)causal inference

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Definitions:

Sensory Adaptation

Sensory adaptation is a phenomenon in which the sensitivity to a stimulus decreases over time as an organism becomes accustomed to its presence.

Just-noticeable Difference

The minimum difference in stimulus intensity required to detect a difference between two stimuli.

Thalamus

A part of the brain that serves as a central relay station for sensory information, excluding smell.

Cortex

The outer layer of the brain involved in higher-order brain functions such as thought, language, and decision making.