Among the World as a Whole,there Is __________ Correlation Between

question 104

Multiple Choice

Among the world as a whole,there is __________ correlation between how rich a country is and how fast it __________ from 1960 to 2000.

• A)a strong positive;grew
• B)almost no;grew
• C)a strong positive;contracted
• D)a strong positive;contracted.
• E)almost no;contracted

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Definitions:

Control Groups

In experiments, the groups that do not receive the experimental treatment and are used as a baseline to compare the effects of the treatment.

Treatment Groups

In experimental research, groups of participants receiving the intervention or treatment being tested, as opposed to control groups which receive no treatment or a placebo.

Experimental Research

A research method that investigates causal relationships by manipulating one variable to see its effect on another, under controlled conditions.

Independent Variable

The variable that is manipulated in an experiment to test its effects on the dependent variable.