What Procedure Would You Use to Ensure That Experimental and Control

question 53

Multiple Choice

What procedure would you use to ensure that experimental and control groups will be similar in most ways

• A) Allow the control group to be larger than the experimental group. 
• B) Extensive interviewing and checklists allow you to document all potential differences. 
• C) Operational definitions of similarity must be created. 
• D) Random assignment allows groups to be fairly similar.

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Definitions:

Constant Stimuli

A method in psychophysics used to measure the sensitivity of sensory systems by presenting stimuli of constant intensity but differing in duration or frequency.

Method of Limits

A psychological research method used to measure sensitivity to stimuli by gradually increasing or decreasing the stimulus intensity until it is detectable by the participant.

Adjustment

The process of adapting or becoming accustomed to new conditions or to a new environment.

Weber's Law

A rule which asserts that the minimal discernible change in a stimulus is a constant proportion of the initial stimulus.