Category: C

A variable whose value is held constant throughout an experiment, control; control condition; control group.    

A drug or chemical regulated under the federal Controlled Substances Act of 1970. Its manufacture, distribution, and sale are subject to federal controls. The major criterion for controlling a substance is its potential for abuse and dependence liability. A substance regulated by U.S. federal law to prevent abuse. Controlled substances are divided into five schedules,…

A procedure where an assumed cause or related factor is observed while other influences are controlled. A clinical trial that compares the outcome of a group of randomly assigned patients who receive the experimental treatment to the outcome of a group of randomly assigned patients who receive a standard treatment or inactive placebo.  

A diagnostic procedure in which the experimenter observes an individual’s behavior under standard conditions in the laboratory.  

An experiment characterized by a test group and a control group. Experimental conditions are identical for both groups except for a single condition or factor. Comparison of results of the test group with those of the control group should reveal the effect (if any) of the test factor or condition, control; control condition. A term…

A pattern of alcohol consumption that is moderate and avoids the extremes of total abstinence and of inebriation.  

Studies that use inbreeding or selective breeding in order to determine the relative roles of heredity and environment in creating individual differences.  

Computer activities that dictate the order in which other computer functions are performed.  

In research, the condition of subjects whose behavior is not manipulated. Used for purposes of comparison, control.  

Making something happen the way it was planned to happen. To have the ability or authority to direct someone or something. To limit or restrain something. The term used by the American Hospital Association (AHA) in its listing of hospitals in the Guide to the Health Care Field (AHA Guide) to indicate the kind of…